Civil Formula

8/17/2019 Civil Formula

1/80

Kaliganga - II

ANNEXURE - 13.1

I. Site Data:

1. HFL at Weir Site 1487.21 m2. Proposed level of centre line of runner 1338.0 m

.3 iver !ed level at proposed "iversion Weir site# 1484 m

.4 Proposed top level of $renc% Weir# 148&.7 m

&. "esi'n disc%ar'e# & cumecs

(. $otal loss of %ead )assumed*calculated+ up to Fore!a,

i+ -t nta/e )!ot% entr, and outlet points+# 0.40 m

ii+ Poer "uct 1&0 m lon' 1 in 24& 0.(1 m

iii+ "esiltin' $an/ 0.17 m

iv+ Poer %annel*Free flo S Pipe*$unnel 2000 m lon' 1 in &00 4.0 m

$otal %ead loss 5.18 m

7. Full Suppl, Level at fore!a, $an/ 5 148&.70 6 &.18 5 1480.&2 m

8. ross Head availa!le for Poer eneration 5 1480.&2 6 1338.0 5 142.&2 m

. 142.&2 6 1.(0 5 140.2 m

10. Proposed nstalled apacit, of t%e Poer House 5 8.38 9 & 9 140.2 5 &04 :W

t is proposed to install to )02+ units of 3000 :W eac% total installed capacit,

5 (000 :W as 3000 :W is a standard unit si;e.

II. Proposed Dimensions of important units

1. $renc% eir 2.0 m ide lenft% )20


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Kaliganga - II

Sa, (4 cumec

Widt% of t%e stream at t%e "iversion Site 5 30 m

$op of "iversion Weir at levation 5 148&.7 m

Let E"ept% of flo at ma9m. Flood "isc%ar'e GHG 5 1.&1 m

Flood "isc%ar'e capacit, of t%e Weir is determined !,=

W%ere=

B 5 Flood disc%ar'e capacit, in cumec 5 (& cumec

n 5 oefficient of ru'osit, 5 0.018 for !oulder, !ed of t%e stream

5 H,draulic radius in metres -*P

P 5 Wetted perimeter of t%e stream in meters

S 5 Lon'itudinal !ed slope of t%e stream in t%e reac% of t%e eir 51 in 20

Do B 5 (& cumec >:

Hi'% Flood Level 5 148&.7 < 1.&1 5 1487.21 m

a9m. Scour "ept% G"sG

"isc%ar'e per runnin' metre C 5 23.13

%ere= f 5 silt factor %ic% varies for Hills streams from 1 to 20.

- value of 20 is !ein' adopted in t%e a!sence of related data.

5 4.28 m

5 (.42 m

(.42 + 0.5 5 (.2 m. -s suc% t%e foundation of *S cutoff s%all !e ta/en to a L of

5 1487.21 6 6.92 = 1480.29 m"ept% of cutoff !elo !ed level 5 1484.00 6 1480.2 = 3.71 m

(.42 < 1.5 5 7.2 m. -s suc% t%e foundation of "*S cutoff s%all !e ta/en to a L of

5 1487.21 6 7.92 = 1479.29 m

"ept% of cutoff !elo !ed level 5 1484.00 6 147.2 = 4.71 m

V. Design Of rench eir In the #ed of river6:

1. Design Discharge 5 .13 cumec

2. Length oof Weir

3.

W%ere= ? 5 Widt% of tras% rac/ ) idt% of openin' of trenc% eir at top+

B 5 "iverted "isc%ar'e 5 .132 cumec

(assm!" 10# $%& $&am! '%&) 5 0.&

(I* is g!n!&all assm!" as 0.5.) 5 0.&d 5 oefficient of disc%ar'e t%rou'% t%e openin' of t%e tras% rac/

5 0 4(&

B 5 - 9 1*n 9 2*3 9 S1*2

- 5 ross6sectional area of flo over eir in m2

-vera'e dept% of Scour GdsG 5 1.43 )C2*f+1*3

$%erefore ds

a9imum scour dept% "s 5 1.& 9 ds

"eepest Foundation level of *S cutoff >F $renc% eir s%all !e ta/en to a dept% suc% t%at t%e cutoff %as atleast "s


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Kaliganga - II

W%ere is t%e coefficient of disc%ar'e for !road crested eir and is ta/en as 1.&3

$%erefore 5 8.02

@ ? 5 0.313 m

Widt% per metre alloin' 1.00 m*sec flo t%rou'% velocit, in t%e tras% rac/ openin's

5 B*)0.4IL+

5 0.4&7 m

-nd ma/in' alloance for &0A clo''in' idt% per metre

5 0.13 m

-nd idt% reCuired assumin' &0A tras% rac/ area as effective

5 1.82( m

Hence provide 2 m idt% of tras% rac/ openin'

%ec/ for disc%ar'in' capacit, of $enc%=

Lent% of trenc% eir 5 0 m

"esi'n "isc%ar'e 5 .132 cumec

$op idt% of openin' of trenc% 5 $ 5 2.0 m

Let ater dept% alon' a section of $renc% is GdG @ side all %ave slope 10J # 1H

B 5-

9 9n

5-

P

n 5 0.018

B 52d

9 9 0.223(0.018

Let d 5 0.8 m

$%en= B 51.38

9 0.&( 9 0.223( 5 11.12 cumec0.018

K .13 >:.

4. Calculation or le!el o "nta#e or $ater Conductor %&ste'

Pond level )$op of $renc% eir+ 5 148&.70 m

Si;e of openin' at entr, of nta/e 5 2.00 m 9 1.(0 m

Let Si;e of openin' at entr, of Poer "uct 5 3.00 m 9 1.3&

Limitin' Jelocit, at t%e start of Poer "uct 5 2 m*s

5 1.71 9 3.00 , 1.35 5 8.0& m!

K 7.4 cumec >

Water level inside inta/e 5 148&.7 6 0.2 5 148&.& m

Hei'%t of nta/e >penin' 5 1.3& m

Sill Level at poer duct >penin' 5 148&.&0 6 1.35 5 1484.1& m

?ed Level of Poer "uct d*s of nta/e 1484.1& 6 0.2 5 1483.& m

VI. $7draulic Design Of ater "onductor S7stem:

1. Design o o*er Duct+

"esi'n disc%ar'e 5 7.41 cumec

u'osit, oefficient 5 D 5 0.018

5 Specific ener', at an, section of t%e stream over t%e tras% rac/ 5 )B*L+2*3

Hoever from practical consideration provide 2.0 m ide trenc% ) covered it% tras%rac/+ in t%e eir len't% of 20.0 m.

Slope of $renc% alon' flo 5 S 5 1*20 S1*2 5 0.223(0(7

2*3 S1*2

%ere= - 5 area of flo of trenc% ≈ 2.0 9 d

2*3

B 5 LH3*2 3*2


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Kaliganga - II

FS" " 5 1.35 m

!ing $%& &%" N%. a"!a %$ X-s!*i%n

ross sectional area provided for Poer "uct 5 3.00 9 1.3& 5 4.0& sCm.

5 0.78

Wetted Perimeter 5 2 < 2 9 0.8 5 &.70 m

H,draulic adius 5 0.71 m

Jelocit, of Flo 5 2.83 m*s

5 11.45 cumec

K 7.4 cumec >.:

Len't% of Poer "uct 5 1&0 m

2. Design o o*er Channel/,unnel/ -ree -lo* ie+

"esi'n disc%ar'e 5 &.77& cumec


/!* ?ed slope S= 5 1 in &00

?ed Widt% ? 5 2.1 m

and FS" " 5 1.&& m

!ing $%& a"!a %$ X-s!*i%n

ross sectional area provided for Poer %annel*$unnel 5 2.1 9 1.&& 5 3.2( sCm.

Wetted Perimeter 5 2 9 FS" < ? 5 &.2 m

H,draulic adius 5 0.(3


5 &.2 cumec

K &.78 cumec >.:

3. Design o -ree -lo* ie+ o #e used at suita#le locations6


u'osit, oefficient 5 D 5 0.010/!* ?ed slope S 5 1 in &00

-ssumin' si;e of pipe as 1700 mm diameter it% a free flo clearance of 100 mm=

$%erefore area of ?" 5 4*3 9 a 9 % 5 4*3 9 0.4 9 0.1& 5 0.08 sCm

-nd area of flo 5 0.78& 9 1.7 9 1.7 6 0.08 5 2.1 sCm

Perimeter=

$an ; 5 0.&3

0.&3

5 28 de'rees

Hence etted perimeter 5 22*7 9 " 9 )3(062I4(+*3(0 5 4.&1 m

5 -*P 5 0.4 m@ velocit, 5 "esi'n "isc%ar'e*-rea 5 2.7( m*sec

5 6.052 cumec

K &.78 cumec >.:

4. Design o De silting ,an#+

"esi'n disc%ar'e 5 )7.22


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Kaliganga - II

5 0.02&7 m*s

5 3(.1 m

Len't% of nta/e side flumin' 5 10.& m

Len't% of off ta/e side flumin' 5 1.0 m

Dos. of Hoppers proposed 5 &

$otal len't% of "e siltin' $an/ 5 3(.2 m

"imensions of "esiltin' $an/= L 5 3(.2 W 5 7.0 @ " 5 4.21 m.

. Design o -ore 0a& ,an#+

"esi'n disc%ar'e 5 &.78 cumec

"ept% of live stora'e 5 3 m

Free ?oard 5 1.7 m

Stora'e apacit, for 2 minutes=

?, a, of providin' 2 minutes stora'e capacit, t%e volume of fore!a, tan/ s%all !e

5 2 9 (0 9 &.78 5 (3 cum

-rea reCuirement for fore!a, tan/ 5 2 minutes stora'e* dra don dept% 5 231 sCm

Len't% of Fore!a, $an/ 5 33 m

Widt% of Fore!a, $an/ 5 7 m

Full suppl, level 5 1480.&2 m

inimum dra don level 5 1477.&2 m

Penstoc/ "iameter 5 1.40 m

5 2.8 m

5 1.(8 m

"ept% of floor !lo !ell mout% openin' of t%e penstoc/ p 5 0.&

entre line of penstoc/ openin' 5 ""L at fore!a, 6 ater cus%ion6 Half of t%e Penstoc/ openin'

5 1474.44 m

5 .(8 m

"imensions of fore!a, tan/ L 5 33.0 m ? 5 7.0 m @ " 5 3.00 m.

Jolume provided for stora'e 5 (3 cum

Hence >.:.

. Design o %urlus $ater Escae+

"esi'n disc%ar'e B 5 &.78 cumec

Full Suppl, Level at Fore!a, 5 rest level of over flo section 5 1480.&2 m

-ssume dept% of overflo H 5 0.7 @ L 5 ( m

From eCuation B 5 1.71 9 L 9 = B 5 (.01K &.78cumec >.:.

$%erefore provide a spilla, (.00 m lon' @ 0.7 m ide crest

. Design o enstoc#+

"esi'n disc%ar'e B 5 &.& cumec

Full Suppl, Level at Fore!a, 5 rest level of over flo section 5 1480.&2 m

Loest elevation of penstoc/ 5 1338.00 m

Len't% of Penstoc/ 5 23& m

$ime constant 5 10 sec

$%ic/ness of Steel Liner 5 12 mm

5 1.33 m

Sa, 1.40 m

$%erefore settlin' len't% L 5 )Jf *J

m+ 9 "

>penin' %ei'%t of penstoc/ includin' !ell mout% %e 5 2 9 "ia of Penstoc/

-lloance for ater cus%ion 5 0.( 9 %e

$otal dept% of Fore!a, $an/ near !ell mout% 5 Half of openin' %ei'%t < )Fullsuppl, level 6 Level of centre line of penstoc/+ < Free ?oard < p

H3*2

"iameter of Penstoc/ "1 51.12 9 B0.4&9 H 60.12


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Kaliganga - II

-rea of Penstoc/ 5 "esi'n disc%ar'e*Limitin' velocit, 5 1.&4 sCm

Provide 1.40 m internal diameter penstoc/ of 12 mm t%ic/ %avin' outer diameter of 1.4

-rea provided 5 22*)7I4+ 9 1.40 5 1.&4 sCm

)-ll parameters are in FPS+ 5 &.2( feet

5 1.( m

$ater a''er+

a9imum ater level at fore!a, 5 1480.&2 m

Loest elvation of t%e penstoc/ 5 1338.00 m

5 142.&2 m

)refferin' to alleviEs c%art+

%ere a 5 velocit, of travel pressure

v 5 velocit, 5 &.& ÷ 1.&3 5 3.&7 m*sec

atio of diameter of penstoc/ pipe to t%ic/ness of steel liner

5 1.40 0.01 5 117ead from 'rap% a 5 32&0 in FPS @ 0.(12

$%erefore pipe line constant : 5 1.27

-nd time constant D 5 at*2L 5 21.1

From 'rap% for D 5 21.1 @ : 5 1.2(( P 5 0.02&

$%erefore ratio of pressure rise to initial stead, %ead 5 2:P 5 0.0(3 Sa, (.3

$%erefore ultimate pressure includin' t%at of ater %ammer

5 142.& < (.3 A of 142.& 5 1&2 m of ater

5 1&.2 /'*sCcm.

$%erefore t%ic/ness of steel liner 5 P 9 " * 2S 5 1.01 cm 5 10.1 m

5 10.1 < 1.& 5 1Sa, 12 mm

$%erefore area of pipe for eac% unit 5 0.77


-rea provided 5 22*)7I4+ 9 1 5 0.7 sCm

K 0.77 sC

Hence >.:.


5 7.2 < 1.& 5 8

Sa, 10 mm

. &draulic Design o ,ail 5ace Channel+

"esi'n disc%ar'e 5 &.& cumecs

Jelocit, is limited up to 5 2 m*s

u'osit, coefficient 5 0.018

Let= ? 5 2.& m @

FS" 5 1.2& m

1 in &00

ross sectional area provided - 5 3.13 sCm

1*2

Head Loss t%rou'% Penstoc/ HL 5 0.34 9 )J1.*"1.1+ 9 )L*1000+

nternal stead, %ead %i

Pipe Line constant : 5 av*2'%i

÷

$%us provide 8 mm t%ic/ steel liner for t%e first 3& m 10 mm t%ic/ steel liner for t%e second 100 m @mm t%ic/ steel liner for t%e last 100 m.

6Munction )anifold+ is reCuired to !e provided at t%e end of t%e penstoc/ for more t%an one unit= in present case for to units.

2


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Kaliganga - II

5 -*P 5 0.(3 m

= velocit, of flo 5 1.82 m*sec

and "isc%ar'e B 5 &.(8 cumec

K &.& cumec >.:.

sin' annin'Es formulae v 5 1*D 9 2*3 9 S1*2


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317079208.,ls

ANNEXURE - 13.1

I. Site Data:

1. HFL at Poer House Site# 1(72.1& m

2. Proposed level of central line of runner 143.0 m.3 ?ed level at proposed "iversion Weir site# 1(70.4 m

.4 Proposed top of "iversion Weir# 1(70.4 m

&. "esi'n disc%ar'e# 3 cumecs



ii+ Poer "uct 7& m lon' 1 in 24& 0.31 m


iv+ Poer %annel*Free flo S Pipe*$unnel (0 m lon' 1 in &00 1.38 m

$otal %ead loss . m

7. Full Suppl, Level at fore!a, $an/ 5 1(70.40 6 2.2( 1((8.14 m

8. ross Head availa!le for Poer eneration 5 1((8.14 6 143.0 5 17&.14 m

. Det Head availa!le for Poer eneration 5 )ross Head 6 &A of ross Head+ 1((.38 m

10. Proposed apacit, of t%e Plant 5 8.38 9 3 9 1((.38 4183 :W


5 4000 :W as 2000 :W is a standard unit si;e.


1. "iversion 2.0 m ide and 1( m lon'.

2. Poer duct 7& m lon'. 5 7& m lon'

3. "esiltin' $an/ 2&.7 m lon'. 5 2&.7 m lon'

4. $otal len't% >pen %annel* $unnel @ Free flo S Pipe 5 (0 m

(. Fore!a, $an/ for 2 minutes stora'e L 5 24.0 m ?5 7.0 m @ " 5 2.&0 m

7. Len't% of Penstoc/ pipe appro9. 5 300 m

III. Design discharge for various civil structures:

1. "esi'n disc%ar'e for Penstoc/ Pipe @ $ail ace %annel )10A over desi'n disc%ar'e+

5 3.3 cumec

2.

5 3.47 cumec

3. "esi'n disc%ar'e for "esiltin' $an/ ) 2&A over t%e desi'n disc%ar'e for t%e Poer %annel+

5 4.33 cumec

4.

5 4.7( cumec

&.

5 &.48 cumec

IV. Design Of Diversion Dam/ eir and Inta!e "ham#er:

a9imum Flood "isc%ar'e Bma9 5

W%ere= Bma9 5 a9imum flood disc%ar'e of 100 ,ear freCuenc, in cumec.- 5 a constant 5 14 for Hills

t % t - i S : ( && S :

$%D&'()I" D*SI+, O- "IVI) S&("(&*S -O& ')I+',+' 0 I S$P 2444

"esi'n disc%ar'e for Fore!a, $an/ Poer %annel Free Flo $unnel @ Spilla, at t%e Fore!a,$an/ )&A over t%e desi'n disc%ar'e for t%e Penstoc/ Pipe+

"esi'n disc%ar'e for Poer "uct ) 10A over desi'n disc%ar'e for "E$an/ to 'ra! t%e !ed load !, vorte9 tu!es+

"esi'n disc%ar'e for nta/e %am!er @ $renc% Weir ) 1&A over t%e "esi'n disc%ar'e for t%ePoer "uct+

9 -3*4


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317079208.,ls

Sa, 340 cumec

Widt% of t%e stream at t%e "iversion Site 5 1( m

$op of "iversion Weir at levation 5 1(70.4 m

"ept% of flo at ma9m. Flood "isc%ar'e GHG 5 1.7& m


W%ere=

B 5 Flood disc%ar'e capacit, in cumec


5 H,draulic radius in metres



Do B 5 443 cume

Hi'% Flood Level 5 1(70.4 < 1.7& 5 1(72.1& m


"isc%ar'e per runnin' metre C 5 21.2&



5 4.04 m

5 (.0( m

(.0( + 1 5 7.0( m. -s suc% t%e foundation of *S cutoff s%all !e ta/en to a L of

5 1(72.1& 6 7.06 = 1665.09 m

"ept% of cutoff !elo !ed level = 5.31 m

(.0( < 1.5 5 7.&( m. -s suc% t%e foundation of "*S cutoff s%all !e ta/en to a L of

5 1(72.1& 6 7.56 = 1664.59 m


V. Design Of rench eir Over the main #od7 of the Dam6:

1. Design Discharge 5 &.47 cume

2. Length o ,rench $eir 5 1( m

3.


B 5 "iverted "isc%ar'e 5 &.48 cumec

1 5 atio of area of openin' in t%e tras% rac/ surface over t%e trenc% eir

5 0.&

2 5 atio of area of openin' in t%e tras% rac/ li/el, to !e clo''ed

5 0.&

d 5 oefficient of disc%ar'e t%rou'% t%e openin' of t%e tras% rac/ 5 0.4(&

B 5 - 9 1*n 9 2*3 9 S1*2

- 5 ross6sectional area of flo in t%e eir * stream in m2


$%erefore ds


"eepest Foundation level of *S cutoff all s%all !e ta/en to a dept% suc% t%at t%e cutoff all atleast "s


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317079208.,ls

W%ere is t%e coefficient of disc%ar'e for !road crested eir and is ta/en as 1

$%erefore 5 0.3(

@ ? 5 1.0&

Widt% per metre alloin' 1.00 m*sec flo t%rou'% velocit, in t%e tras% rac/ openin'

5 B*)0.4IL+ 5 0.343 m


5 0.(8& m


5 1.37 m


%ec/ for disc%ar'e capacit, of eir=

Lent% of trenc% eir 5 1( m

"esi'n "isc%ar'e 5 &.48 m

$op idt% of openin' of trenc%

5 2 m 5 $

Let ater dept% alon' a section of eir is GdG.

$%erefore area of flo 5 2 9 d

Let velocit, %ead at t%e ot%er end of t%e trenc% !e %v

$%en %v 5 n*)nr &.48 5 3.62 dN3*2

>r d 5 1.32

%ec/in' for adeCuac, of atera,=

-vera'e dept% of flo in t%e trenc% eir 5) 0.( < 1.& +*2 5 1.0& m

-rea of flo 5 Widt% 9 avera'e dept% 5 2.1 m

Wetted Perimeter 5 Widt% < 2 9 -vera'e dept% 5 4.1 m

Slope provided in t%e trenc% eir 5 )1.&60.(+*1( 5 1 in 18

sin' annin'Es formula it% value of n 5 0.018

5 17.7 cumec

K &.48 cume

Hence >.:.


Pond )"am $op+ level 5 1(70.40 m

Si;e of openin' at entr, of nta/e 5 2.00 m 9 1.&0 m

Si;e of openin' at entr, of Poer "uct 5 2.70 m 9 1.10


5 1.71 9 2.70 , 1.1 5 &.33 K 4.7( cHei'%t of >penin' 5 1.10 m

nvert Level at 5 1(70 40 0 2 1 10 5 1(( 10 m

5 Specific ener', at an, section of t%e stream in t%e trenc% eir 5 )B*L+2*3

Hoever from practical consideration provide 2.0 m ide trenc% ) tras% rac/+ forentire len't% of 1(.0 m.

B 5 - )2' 9 %v+1*2

Hoever provide a ater dept% of 0.(0 m at start increasin' it to 1.&0 m at t%e entrt%e nta/e %am!er.

sin' annin'Es formula B 5 - 9 )1*D+ 9 2*3 9 S1*2

B 5 LH3*2 3*2


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"esi'n disc%ar'e 5 4.7(4 cumec


/!* ?ed slope S 5 1 in 24&

?ed Widt% ? 5 2.7 m

FS" " 5 0.8 m

!ing $%& &%" N%. a"!a %$ X-s!*i%nross sectional area provided for Poer "uct 5 2.7 9 0.8 5 2.1( sCm.

5 0.8

Wetted Perimeter 5 2 < 2 9 0.8 5 4.30 m

H,draulic adius 5 0.&0 m


5 4.84 cumec

K 4.7( cumec >.:

Len't% of Poer "uct 5 7&

2. Design o o*er Channel/,unnel+"esi'n disc%ar'e 5 3.4(& cumec


/!* ?ed slope S= 5 1 in &00

?ed Widt% ? @ 5 2.1 m

FS" " 5 1.0& m

!ing $%& a"!a %$ X-s!*i%n

ross sectional area provided for Poer "uct 5 2.1 9 1.0& 5 2.21 sCm.

Wetted Perimeter 5 2.:

3. Design o -ree -lo* ie+

"esi'n disc%ar'e 5 3.4(& cumec


/!* ?ed slope S 5 1 in &00


$%erefore area of ?" 5 4*3 9 a 9 % 5 4*3 9 0.3(1 9 0.1& 5 0.07 sCm

-nd area of flo 5 0.78& 9 1.4 9 1.4 6 0.072 5 1.47 sCm

Perimeter=

$an ; 5 0.(0

0.(0

5 31 de'rees

Hence etted perimeter 5 22*7 9 " 9 )3(062I4(+*3(0 5 3.(4 m

5 -*P 5 0.40 m

@ velocit, 5 "esi'n "isc%ar'e*-rea 5 2.3( m*sec

5 3.&8 cumec

K 3.47 cumec >.:

4. Design o De silting ,an#+"esi'n disc%ar'e 5 )4.33


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317079208.,ls

5 0.22 m*sec

5 2.7& cm*sec

0.028 m*sec

Widt% of "e siltin' $an/ proposedW 5 (.2 m

5 2.8( m

5 2.&4 cm*sec

5 0.02&4 m*s 5 24.8 m

Len't% of nta/e side flumin' 5 m

Len't% of off ta/e side flumin' 5 1 m

$otal len't% of "e siltin' $an/ 5 2&.7 m

"imensions of "esiltin' $an/= L 5 2&.7 W 5 (.2 @ " 5 2.8&8 m.



"ra don dept% 5 2.& m

Free ?oard 5 1.( m



5 2 9 (0 9 3.47 5 41( cum

-rea reCuirement for fore!a, tan/ 5 2 minutes stora'e* dra don dept% 5 1(( sCm



Full suppl, level 5 1((8.14 m

inimum dra don level 5 1((&.(4 m


5 2 m 5 1.2 m

5 0.&


5 1((3.44 m

5 7.80 m

"imensions of fore!a, tan/ L 5 24.0 m ? 5 7.0 m @ " 5 2.&0 m.

Jolume provided for stora'e 5 420 cum

K 41( cum

Hence >.:.


"esi'n disc%ar'e B 5 3.47 cumec

Full Suppl, Level at Fore!a, 5 rest of over flo section 5 1((8.1 m

-ssume dept% of overflo H 5 0.( @ L 5 & m

From eCuation B 5 1.71 9 L 9 = B 5 3.7

K 3.47 cumec >.:

$%erefore provide a spilla, &.00 m lon' @ 0.( m crest

. Design o enstoc#+

"esi'n disc%ar'e B 5 3.3 cumecFull Suppl, Level at Fore!a, 5 rest of over flo section 5 1((8.14 m

Lo est ele ation of penstoc/ 143 00 m

Flo t%rou'% velocit, Jf

Settlin' Jelocit, Js

"ept% reCuired " 5 B*)W 9 Jf +

oderated settlin' velocit, 5 Jm 5 Js 6 ).132*"1*2+ 9 Js


m+ 9 "

>penin' %ei'%t of penstoc/ includin' !ell mout% %e

5 2 9 "ia of Penstoc/


"ept% of floor !lo !ell mout% openin' of t%e penstoc/ %a

$otal dept% of Fore!a, $an/ 5Half of openin' %ei'%t < )Full suppl, level 6Level of centre line of penstoc/+ < Free ?oard < %

a

H3*2


20/80

317079208.,ls



5 1.03 m

Sa, 1.00 m

Jelocit, t%rou'% penstoc/ 5 4.2 m*sec

-rea of Penstoc/ 5 "esi'n disc%ar'e*Limitin' velocit, 5 0.7 sCm


-rea provided 5 22*)7I4+ 9 1.00 5 0.7 sCm

5 13.2 feet

)-ll parameters are in FPS+ 5 4.04 m

$ater a''er+

a9imum ater level at fore!a, 5 1((8.14 m

Loest elvation of t%e penstoc/ 5 143.00 m

5 17&.14 m



v 5 velocit, 5 3.3 ÷ 0.78& 5 4.2 m*sec


5 1.00 0.01 5 83.3

ead from 'rap% a 5 33&0 in FPS @ 1021.0

$%erefore pipe line constant : 5 1.2&


From 'rap% for D 5 17.0 @ : 5 1.24 P 5 0.03

$%erefore ratio of pressure rise to initial stead, %ead 5 2:P 5 0.07& Sa, 7.&

$%erefore ultimate pressure includin' t%at of ater %ammer 5 17&.1 < 7.& A of 17&.1 5 188 m of ater

5 18.8 /'*sCcm.

$%erefore t%ic/ness of steel liner 5 P 9 " * 2S 5 0. cm 5 .0 m

5 .0 < 1.& 5 1

Sa, 12 mm

$%erefore area reCuired of pipe for eac% unit 5 0.3

5 0.7( m

Sa, 0.8 m


-rea provided 5 22*)7I4+ 9 0.8 5 0.& sCm

K 0.3 s

Hence >.:.


5 7.2 < 1.& 5 8

Sa, 10 mm. &draulic Design o ,ail 5ace Channel+


1*2




÷

$%us provide 8 mm t%ic/ steel liner for t%e first100 m 10 mm t%ic/ steel liner for t%e second 100 m12 mm t%ic/ steel liner for t%e last 100 m.

6Munction )anifold+ is reCuired to !e provided at t%e end of t%e penstoc/ for more t%an one unit%e present case for to units.

"iameter of Penstoc/ "2 5"

1 * 20.4

2


21/80

317079208.,ls


Let= ? 5 2.1 m @

FS" 5 1 m

1 in &00


Wetted Perimeter P 5 4.1 m

5 -*P 5 0.&1 m

= velocit, of flo @ 5 1.& m*sec"isc%ar'e B 5 3.34 cumec

K 3.33 cumec >.:



22/80

317079208.,ls


23/80

317079208.,ls


24/80

317079208.,ls

>:.


25/80

317079208.,ls


26/80

317079208.,ls


27/80

317079208.,ls


28/80

317079208.,ls


29/80

317079208.,ls

29

ANNEXURE - 13.1

I. Site Data:

1. HFL at Poer House Site# m

2. Proposed level of central line of runner m.3 ?ed level at proposed "iversion Weir site# m

.4 Proposed top of "iversion Weir# m

&. "esi'n disc%ar'e# cumecs


i+ -t nta/e )!ot% entr, and outlet points+# m

ii+ Poer "uctOO.m lon' 1 in OO.. m

iii+ "esiltin' $an/ m

iv+ m

$otal %ead loss m

7. Full Suppl, Level at fore!a, $an/ 5 m

8. ross Head availa!le for Poer eneration 5 5 m

. Det Head availa!le for Poer eneration 5 )ross Head 6 &A of ross Head+ m

10. Proposed apacit, of t%e Plant 5 9 :W

t is proposed to install to )02+ units ofOOOO..:W eac% total installed capacit,

5 OOO. :W as OO. :W is a standard unit si;e.


1.

2. 5 m lon'

3. 5 m lon'

4. $otal len't% >pen %annel* $unnel @ Free flo S Pipe 5 m

(. Fore!a, $an/ for 2 minutes stora'e L 5 m ?5 m @ " 5 m

7. Len't% of Penstoc/ pipe appro9. 5 m


1.

5 cumec

2.

5 cumec

3.

5 cumec

4.

5 cumec

&.

5 cumec


$%D&'()I" D*SI+, O- "IVI) S&("(&*S -O& ')I+',+' S'+* 0 IS$P 2 444

Poer %annel*Free flo S Pipe*$unnel O.. m lon' 1 in OOO.

8.38 9

"iversion O... m ide and O..m lon'.

Poer duct O...m lon'.

"esiltin' $an/ O...m lon'.

"esi'n disc%ar'e for Penstoc/ Pipe @ $ail ace %annel )10A over desi'n disc%ar'e+


"esi'n disc%ar'e for "esiltin' $an/ ) 2&A over t%e desi'n disc%ar'e for t%e Poer %annel+

"esi'n disc%ar'e for Poer "uct ) 10A over desi'n disc%ar'e for "E$an/ to 'ra! t%e !ed load+



30/80

317079208.,ls

30


W%ere= Bma9 5 a9imum flood disc%ar'e of 100 ,ear freCuenc, in cumec.

- 5 a constant 5 14 for Hills

5 atc%ment -rea in SC. :ms. 5 SC.:ms.

$%erefore Bma9 5 cumec

Sa, cumec

Widt% of t%e stream at t%e "iversion Site 5 m$op of "iversion Weir at levation 5 m

"ept% of flo at ma9m. Flood "isc%ar'e GHG 5 m


W%ere=




P 5 Wetted perimeter of t%e stream in metersS 5 Lon'itudinal !ed slope of t%e stream in t%e reac% of t%e eir 51 in

Do B 5 cumec

Hi'% Flood Level 5 < 5 m


"isc%ar'e per runnin' metre C 5


- value of is !ein' adopted in t%e a!sence of related data.

5 m

5 m

+ 5 m. -s suc% t%e foundation of *S cutoff s%all !e ta/en to a L of

5 6 = m

"ept% of cutoff !elo !ed level = m

< 1.5 5 m. -s suc% t%e foundation of *S cutoff s%all !e ta/en to a L of

5 6 = m

"ept% of cutoff !elo !ed level = mV. Design Of rench eir Over the main #od7 of the Dam6:

1. "esi'n "isc%ar'e 5 cumec

2. Len't% of $renc% Weir 5 m

3.

9 -3*4

B 5 - 9 1*n 9 2*3 9 S1*2



$%erefore ds


"eepest Foundation level of *S cutoff all s%all !e ta/en to a dept% suc% t%at t%e cutoff all %asatleast "s


31/80

317079208.,ls

31


B 5 "iverted "isc%ar'e 5 cumec


5 0.&


5 0.&

d 5 oefficient of disc%ar'e t%rou'% t%e openin' of t%e tras% rac/

5 0.4(&

L 5 idt% of t%e stream 5 0 m

W%ere is t%e coefficient of disc%ar'e for !road crested eir and is ta/en as 1.&3

$%erefore 5

@ ? 5

Widt% per metre alloin' m*sec flo t%rou'% velocit, in t%e tras% rac/ openin's

5 m


5 m


5 m

Hence provide m idt% of tras% rac/ openin'


Lent% of trenc% eir 5 m

"esi'n "isc%ar'e 5 m


5 m 5 $


$%erefore area of flo 5 9 d


$%en %v 5 n*)nr 5 dN3*2

>r d 5


-vera'e dept% of flo in t%e trenc% eir 5) < +*2 5 m

-rea of flo 5 Widt% 9 avera'e dept% 5 m

Wetted Perimeter 5 Widt% < 2 9 -vera'e dept% 5 m


Hoever from practical consideration provide OO. m ide trenc% ) tras% rac/+ for t%eentire len't% of OO.. m.

5 B*)0.4IL+

B 5 - )2' 9 %v+1*2

Hoever provide a ater dept% of O... m at start increasin' it to OO.m at t%e entr, tot%e nta/e %am!er.


32/80

317079208.,ls

32

Slope provided in t%e trenc% eir 5 )OO.6OO.+*OO. 5 1 in

sin' annin'Es formula it% value of n 5 OO..

5 cumec

K cumec

Hence >.:.

4. "alculation for level of Inta!e for ater "onductor S7stem9

Pond )"am $op+ level 5 mSi;e of openin' at entr, of nta/e 5 1 in m 9 m

Si;e of openin' at entr, of Poer "uct 5 m 9 m

Limitin' Jelocit, at t%e start of Poer "uct 5 m*s

Hei'%t of nta/e >penin' 5 m

-lloin' ater cus%ion of m

nvert Level at nta/e >penin' 5 6 6 5 m

?ed Level at Poer "uct near nta/e 6 5 m



"esi'n disc%ar'e 5 0 cumec


/!* ?ed slope S 5 1 in

?ed Widt% ? 5 m

FS" " 5 m

!ing $%& &%" N%. a"!a %$ X-s!*i%n

ross sectional area provided for Poer "uct 5 9 5 sCm.

5

Wetted Perimeter 5 5 m

H,draulic adius 5 m

Jelocit, of Flo 5 m*s

5 cumec

Len't% of Poer "uct 5

2. Design o o*er Channel/,unnel+

"esi'n disc%ar'e 5 cumec


/!* ?ed slope S= 5 1 in

?ed Widt% ? @ 5 m

FS" " 5 m

!ing $%& a"!a %$ X-s!*i%n

ross sectional area provided for Poer "uct 5 9 5 sCm.

Wetted Perimeter 5 5 m

H,draulic adius

Jelocit, of Flo 5 m*s

5 cumec

K OO..cumec >.:.



Fr Do. 5 J*)' 9 "+1*2




33/80

317079208.,ls

33

"esi'n disc%ar'e 5 cumec


/!* ?ed slope S 5 1 in

-ssumin' si;e of pipe as mm diameter it% a free flo clearance of mm=

$%erefore area of ?" 5 4*3 9 a 9 % 5 4*3 9 9 5 sCm

-nd area of flo 5 0.78& 9 9 6 5 sCm

Perimeter=

$an ; 5

5 de'rees

Hence etted perimeter 5 22*7 9 " 9 )3(062IO...+*3(0 5 m

5 -*P 5 m

@ velocit, 5 "esi'n "isc%ar'e*-rea 5 m*sec

5 cumec

KOO.. cumec >.:.


"esi'n disc%ar'e 5 )4.33


34/80

317079208.,ls

34

5 m

5 m

5


5 m

5 m

"imensions of fore!a, tan/ L 5 m ? 5 m @ " 5 m.

Jolume provided for stora'e 5 cum

K OO.cum

Hence >.:.


"esi'n disc%ar'e B 5 cumec

Full Suppl, Level at Fore!a, 5 rest of over flo section 5 0.0 m

-ssume dept% of overflo H 5 @ L 5 m

From eCuation B 5 1.71 9 L 9 = B 5

K OO.. cumec >.:.

$%erefore provide a spilla, m lon' @ m crest

. Design o enstoc#+

"esi'n disc%ar'e B 5 cumec

Full Suppl, Level at Fore!a, 5 rest of over flo section 5 m

Loest elevation of penstoc/ 5 m

Len't% of Penstoc/ 5 m

$ime constant 5 sec

$%ic/ness of Steel Liner 5 mm

5 m

Sa, m

Jelocit, t%rou'% penstoc/ 5 m*sec

-rea of Penstoc/ 5 "esi'n disc%ar'e*Limitin' velocit, 5 sCm

Provide m internal diameter penstoc/ of mm t%ic/ %avin' outer diameter of m.

-rea provided 5 22*)7I4+ 9 5 sCm

5 feet

)-ll parameters are in FPS+ 5 m

$ater a''er+

a9imum ater level at fore!a, 5 m

Loest elvation of t%e penstoc/ 5 m

5 m



v 5 velocit, 5 ÷ 5 m*sec


5 5




$otal dept% of Fore!a, $an/ 5Half of openin' %ei'%t < )Full suppl, level 6

Level of centre line of penstoc/+ < Free ?oard < %a

H3*2


1*2




÷


35/80

317079208.,ls

35

ead from 'rap% a 5 in FPS @

$%erefore pipe line constant : 5

-nd time constant D 5 at*2L 5

From 'rap% for D 5 @ : 5 P 5

$%erefore ratio of pressure rise to initial stead, %ead 5 2:P 5 Sa, A


5 < A of 5 m of ater

5 /'*sCcm.

$%erefore t%ic/ness of steel liner 5 P 9 " * 2S 5 cm 5 mm

5 < 1.& 5

Sa, mm

$%erefore area reCuired of pipe for eac% unit 5

5 mSa, m

Provide m internal diameter penstoc/ of mm t%ic/ %avin' outer diameter of m.

-rea provided 5 22*)7I4+ 9 5 sCm

K sCm.

Hence >.:.

$%erefore t%ic/ness of steel liner 5 P 9 " * 2S 5 cm 5 mm

5 < 1.& 5

Sa, mm

. &draulic Design o ,ail 5ace Channel+

"esi'n disc%ar'e 5 cumecsJelocit, is limited up to 5 m*s


Let= ? 5 m @

FS" 5 m

1 in

ross sectional area provided - 5 sCm

Wetted Perimeter P 5 m

5 -*P 5 m

= velocit, of flo @ 5 m*sec

"isc%ar'e B 5 cumecKOO. cumec >.:.

$%us provide O... mm t%ic/ steel liner for t%e firstOO.. m O... mm t%ic/ steel liner for t%e secondOO. m @ O... mm t%ic/ steel liner for t%e last OO. m.

6Munction )anifold+ is reCuired to !e provided at t%e end of t%e penstoc/ for more t%an one unit= int%e present case for to units.

"iameter of Penstoc/ "2 5"1 * 2

0.4

2



36/80

Kaliganga - II

ANNEXURE - 13.1

I. Site Data:

1. HFL at Poer House Site# 148&.( m2. Proposed level of central line of runner 133(.& m

.3 ?ed level at proposed "iversion Weir site# 1484.18 m

.4 Proposed top of "iversion Weir# 1484.18 m

&. "esi'n disc%ar'e# & cumecs



ii+ 0.(1 m


iv+ 4.0 m


7. Full Suppl, Level at fore!a, $an/ 5 1484.18 6 &.18 147.00 m

8. ross Head availa!le for Poer eneration 5 147.00 6 133(.& 5 142.&0 m

. 140.0 m

10. Proposed apacit, of t%e Plant 5 & 9 140.0 &04 :W


5 (000 :W as 3000 :W is a standard unit si;e.


1.

2. 5 1&0 m lon'3. 5 37.0 m lon'

4. $otal len't% >pen %annel* $unnel @ Free flo S Pipe 5 2000 m

(. Fore!a, $an/ for 2 minutes stora'e L 5 33.0 m ?5 7.0 m @ " 5 3.00 m

7. Len't% of Penstoc/ pipe appro9. 5 23& m


1.

5 &.& cumec

2.

5 &.78 cumec3.

5 7.22 cumec

4.

5 7.4 cumec

&.

5 .13 cumec




$%D&'()I" D*SI+, O- "IVI) S&("(&*S -O& ')I+',+' 0 II S$P 23444

Poer "uct 1&0 m lon' 1 in 24&

Poer %annel*Free flo S Pipe*$unnel 2000 m lon' 1 in &00

Det Head availa!le for Poer eneration 5 )ross Head 6 HL Penstoc/

+

8.38 9

"iversion 2.0 m ide and 30 m lon'.

Poer duct 1&0 m lon'."esiltin' $an/ 37.0 m lon'.






9 -3*4


37/80

Kaliganga - II

Sa, (4 cumec

Widt% of t%e stream at t%e "iversion Site 5 30 m

$op of "iversion Weir at levation 5 1484.2 m

"ept% of flo at ma9m. Flood "isc%ar'e GHG 5 1.&1 m


W%ere=






Do B 5 (& cumec

Hi'% Flood Level 5 1484.18 < 1.&1 5 148&.( m


"isc%ar'e per runnin' metre C 5 23.13



5 4.28 m

5 (.42 m

(.42 + 1 5 7.42 m. -s suc% t%e foundation of *S cutoff s%all !e ta/en to a L of

5 148&.( 6 7.42 = 1478.27 m"ept% of cutoff !elo !ed level = 5.91 m

(.42 < 1.5 5 7.2 m. -s suc% t%e foundation of "*S cutoff s%all !e ta/en to a L of

5 148&.( 6 7.92 = 1477.77 m



1. Design Discharge 5 .132 cumec

2. Length o ,rench $eir 5 20 m

3.


B 5 "iverted "isc%ar'e 5 .132 cumec


5 0.&


5 0.&

d 5 oefficient of disc%ar'e t%rou'% t%e openin' of t%e tras% rac/

5 0.4(&

B 5 - 9 1*n 9 2*3 9 S1*2



$%erefore ds


"eepest Foundation level of *S cutoff all s%all !e ta/en to a dept% suc% t%at t%e cutoff all %as atl"s


38/80

Kaliganga - II


$%erefore 5 0.447

@ ? 5 1.327

Widt% per metre alloin' 1.00 m*sec flo t%rou'% velocit, in t%e tras% rac/ openin's

5 0.4&7 m


5 0.13 m


5 1.82( m



Lent% of trenc% eir 5 20 m

"esi'n "isc%ar'e 5 .132 m


5 2 m 5 $



W%ere n is a constant dependin' upon t%e !ottom profile of t%e trenc% 5 0.&

5 0.17 d

-ccordin'l, t%e correspondin' disc%ar'e can !e calculated !, t%e eCuation 5 3.62 dN3*2

>r .1317 5 3.62 dN3*2

>r d 5 1.8&


-vera'e dept% of flo in t%e trenc% eir 5) 0.( < 1.( +*2 5 1.1 m



Slope provided in t%e trenc% eir 5 )1.(60.(+*20 5 1 in 20

sin' annin'Es formula it% value of n 0.018

5 17.8 cumec

K .132 cumec

Hence >.:.


Pond )"am $op+ level 5 1484.18 m

Si;e of openin' at entr, of nta/e 5 2.00 m 9 1.(0 m

Si;e of openin' at entr, of Poer "uct 5 3.00 m 9 1.3&


5 1.71 9 3.00 , 1.35 5 8.0& K 7.4 cu

Hei'%t of nta/e >penin' 5 1 3& m


Hoever from practical consideration provide 2.0 m ide trenc% ) tras% rac/+ forentire len't% of 20.0 m.

5 B*)0.4IL+


$%en %v 5 n*)n


39/80

Kaliganga - II

?ed Level at Poer "uct near nta/e 1482.(3 6 0.2 5 1482.43 m





/!* ?ed slope S 5 1 in 24&

?ed Widt% ? 5 3.00 mFS" " 5 1.35 m

!ing $%& &%" N%. a"!a %$ X-s!*i%n

ross sectional area provided for Poer "uct 5 3.00 9 1.3& 5 4.0& sCm.

5 0.78

Wetted Perimeter 5 2 < 2 9 0.8 5 &.70 m

H,draulic adius 5 0.71 m


5 11.45 cumec

5 7.4 cumec >.:

Len't% of Poer "uct 5 1&0

2. Design o o*er Channel/,unnel+



/!* ?ed slope S= 5 1 in &00

?ed Widt% ? @ 5 2.1 m

FS" " 5 1.&& m

!ing $%& a"!a %$ X-s!*i%n

ross sectional area provided for Poer "uct 5 2.1 9 1.&& 5 3.2( sCm.

Wetted Perimeter 5 2 9 FS" < ? 5 &.2 m

H,draulic adius 5 0.(3


5 &.2 cumec

K &.78 cumec >.:




/!* ?ed slope S 5 1 in &00


$%erefore area of ?" 5 4*3 9 a 9 % 5 4*3 9 0.4 9 0.1& 5 0.08 sCm-nd area of flo 5 0.78& 9 1.7 9 1.7 6 0.08 5 2.1 sCm

Perimeter=

$an ; 5 0.&3

0.&3

5 28 de'rees

Hence etted perimeter 5 22*7 9 " 9 )3(062I4(+*3(0 5 4.&1 m

5 -*P 5 0.4 m

@ velocit, 5 "esi'n "isc%ar'e*-rea 5 2.7( m*sec

5 6.052 cumec

K &.78 cumec >.:


Fr Do. 5 J*)' 9 "+1*2



$%erefore ; 5 $an61



40/80

Kaliganga - II

5 0.22 m*sec

5 2.7& cm*sec

0.027& m*sec

Widt% of "e siltin' $an/ proposedW 5 7.0 m

5 4.22 m

5 2.&7 cm*sec 5 0.02&7 m*s

5 3(.1 m

Len't% of nta/e side flumin' 5 10.& m

Len't% of off ta/e side flumin' 5 1.0 m

Dos. of Hoppers proposed 5 &

$otal len't% of "e siltin' $an/ 5 3(.2 m

"imensions of "esiltin' $an/= L 5 3(.2 W 5 7.0 @ " 5 4.21 m.


"esi'n disc%ar'e 5 &.78 cumec

"ra don dept% 5 3 mFree ?oard 5 1.7 m



5 2 9 (0 9 &.78 5 (3 cum




Full suppl, level 5 147.00 m

inimum dra don level 5 147(.00 m


5 2.8 m

5 1.(8 m

5 0.&


5 1472.2 m

5 .(8 m

"imensions of fore!a, tan/ L 5 33.0 m ? 5 7.0 m @ " 5 3.00 m.

Jolume provided for stora'e 5 (3 cum K (3 cum

Hence >.:.


"esi'n disc%ar'e B 5 &.78 cumec

Full Suppl, Level at Fore!a, 5 rest of over flo section 5 147.0 m

-ssume dept% of overflo H 5 0.7 @ L 5 ( m

From eCuation B 5 1.71 9 L 9 = B 5 (.01

K &.78cumec >.:.

$%erefore provide a spilla, (.00 m lon' @ 0.7 m crest

. Design o enstoc#+"esi'n disc%ar'e B 5 &.& cumec




oderated settlin' velocit, 5 Jm 5 Js 6 ).132*"1*2

+ 9 Js


m+ 9 "





a

H3*2


41/80

Kaliganga - II

Len't% of Penstoc/ 5 23& m



5 1.33 m

Sa, 1.40 m

Jelocit, t%rou'% penstoc/ 5 3.&7 m*sec

-rea of Penstoc/ 5 "esi'n disc%ar'e*Limitin' velocit, 5 1.&4 sCm


-rea provided 5 22*)7I4+ 9 1.40 5 1.&4 sCm

)-ll parameters are in FPS+ 5 &.2( feet

5 1.( m

$ater a''er+

a9imum ater level at fore!a, 5 147.00 m

Loest elvation of t%e penstoc/ 5 133(.&0 m

5 142.&0 m)refferin' to alleviEs c%art+


v 5 velocit, 5 &.& ÷ 1.&3 5 3.&7 m*sec


5 1.40 0.01 5 117

ead from 'rap% a 5 32&0 in FPS @ 0.(12



From 'rap% for D 5 21.1 @ : 5 1.2(( P 5 0.02&

$%erefore ratio of pressure rise to initial stead, %ead 5 2:P 5 0.0(3 Sa, (.3


5 142.& < (.3 A of 142.& 5 1&2 m of ater

5 1&.2 /'*sCcm.


5 10.1 < 1.& 5 1

Sa, 12 mm

$%erefore area of pipe for eac% unit 5 0.77

Provide 1.00 m internal diameter penstoc/ of 8 mm t%ic/ %avin' outer diameter of 1.01(

-rea provided 5 22*)7I4+ 9 1 5 0.7 sCm

K 0.77 sC

Hence >.:.


5 7.2 < 1.& 5 8

Sa, 10 mm. &draulic Design o ,ail 5ace Channel+

"esi'n disc%ar'e 5 & & cumecs


1*2




÷

$%us provide 8 mm t%ic/ steel liner for t%e first 3& m 10 mm t%ic/ steel liner for t%e second 100 m @mm t%ic/ steel liner for t%e last 100 m.

6Munction )anifold+ is reCuired to !e provided at t%e end of t%e penstoc/ for more t%an one unit= in present case for to units.

2


42/80

Kaliganga - II


Let= ? 5 2.& m @

FS" 5 1.2& m

1 in &00


Wetted Perimeter P 5 & m

5 -*P 5 0.(3 m

= velocit, of flo @ 5 1.82 m*sec

"isc%ar'e B 5 &.(8 cumec

K &.& cumec >.:.



43/80

Kaliganga - II


44/80

Kaliganga - II


45/80

Kaliganga - II

>:.


46/80

Kaliganga - II


47/80

Kaliganga - II


48/80

Kaliganga - II


49/80

Kaliganga - II


50/80

317079208.,ls

ANNEXURE - 13.1

I. Site Data:

1. HFL at Poer House Site# 1711.2 m

2. Proposed level of central line of runner 133(.1 m.3 ?ed level at proposed "iversion Weir site# 1707.& m

.4 Proposed top of "iversion Weir# 1708 m

&. "esi'n disc%ar'e# 2.42 cumecs


i+ -t nta/e )!ot% entr, and outlet points+# 1.(3 m

ii+ 0 m


iv+ 2.21 m


7. Full Suppl, Level at fore!a, $an/ 5 1707.&0 6 3.88 1703.(2 m

8. ross Head availa!le for Poer eneration 5 1703.(2 6 133(.1 5 3(7.&0 m

. Det Head availa!le for Poer eneration 5 )ross Head 6 &A of ross Head+ 34.13 m

10. Proposed apacit, of t%e Plant 5 2 9 34.13 7080 :W


5 4000 :W as 2000 :W is a standard unit si;e.


1.

2. 5 7& m lon'

3. 5 21.1 m lon'

4. $otal len't% >pen %annel* $unnel @ Free flo S Pipe 5 (0 m

(. Fore!a, $an/ for 2 minutes stora'e L 5 1.0 m ?5 7.0 m @ " 5 2.&0 m

7. Len't% of Penstoc/ pipe appro9. 5 300 m


1.

5 2.(( cumec

2.

5 2.8 cumec

3.

5 3.4 cumec

4.

5 3.84 cumec

&.

5 4.42 cumec




t % t - i S : ( && S :

$%D&'()I" D*SI+, O- "IVI) S&("(&*S -O& ')I+',+' 0 I S$P 2444

Poer "uct 7& m lon' 1 in 24&

Poer %annel*Free flo S Pipe*$unnel (0 m lon' 1 in &00

8.38 9

"iversion 2.0 m ide and 1( m lon'.

Poer duct 7& m lon'.

"esiltin' $an/ 2&.7 m lon'.






9 -3*4


51/80

317079208.,ls

Sa, 340 cumec

Widt% of t%e stream at t%e "iversion Site 5 1( m

$op of "iversion Weir at levation 5 1707.& m

"ept% of flo at ma9m. Flood "isc%ar'e GHG 5 1.7& m


W%ere=






Do B 5 443 cume

Hi'% Flood Level 5 1707.& < 1.7& 5 170.2& m


"isc%ar'e per runnin' metre C 5 21.2&



5 4.04 m

5 (.0( m

(.0( + 1 5 7.0( m. -s suc% t%e foundation of *S cutoff s%all !e ta/en to a L of

5 170.2& 6 7.06 = 1702.19 m


(.0( < 1.5 5 7.&( m. -s suc% t%e foundation of "*S cutoff s%all !e ta/en to a L of

5 170.2& 6 7.56 = 1701.69 m



1. Design Discharge 5 4.42 cume

2. Length o ,rench $eir 5 1( m

3.


B 5 "iverted "isc%ar'e 5 &.48 cumec


5 0.&


5 0.&

d 5 oefficient of disc%ar'e t%rou'% t%e openin' of t%e tras% rac/ 5 0.4(&

B 5 - 9 1*n 9 2*3 9 S1*2



$%erefore ds


"eepest Foundation level of *S cutoff all s%all !e ta/en to a dept% suc% t%at t%e cutoff all atleast "s


52/80

317079208.,ls


$%erefore 5 0.3(

@ ? 5 1.0&

Widt% per metre alloin' 1.00 m*sec flo t%rou'% velocit, in t%e tras% rac/ openin'

5 0.343 m


5 0.(8& m


5 1.37 m



Lent% of trenc% eir 5 1( m

"esi'n "isc%ar'e 5 &.48 m


5 2 m 5 $




$%en %v 5 n*)nr &.48 5 3.62 dN3*2

>r d 5 1.32


-vera'e dept% of flo in t%e trenc% eir 5) 0.( < 1.& +*2 5 1.0& m



Slope provided in t%e trenc% eir 5 )1.&60.(+*1( 5 1 in 18

sin' annin'Es formula it% value of n 5 0.018

5 17.7 cumec

K &.48 cume

Hence >.:.


Pond )"am $op+ level 5 1708.00 m

Si;e of openin' at entr, of nta/e 5 2.00 m 9 1.&0 m

Si;e of openin' at entr, of Poer "uct 5 2.70 m 9 1.10


5 1.71 9 2.70 , 1.1 5 &.33 K 3.84 cHei'%t of >penin' 5 1.10 m

nvert Level at 5 1708 00 0 8 1 10 5 170( 0 m


Hoever from practical consideration provide 2.0 m ide trenc% ) tras% rac/+ forentire len't% of 1(.0 m.

5 B*)0.4IL+

B 5 - )2' 9 %v+1*2

Hoever provide a ater dept% of 0.(0 m at start increasin' it to 1.&0 m at t%e entrt%e nta/e %am!er.


B 5 LH3*2 3*2


53/80

317079208.,ls





/!* ?ed slope S 5 1 in 24&

?ed Widt% ? 5 2.7 m

FS" " 5 0.8 m

!ing $%& &%" N%. a"!a %$ X-s!*i%nross sectional area provided for Poer "uct 5 2.7 9 0.8 5 2.1( sCm.

5 0.8

Wetted Perimeter 5 2 < 2 9 0.8 5 4.30 m

H,draulic adius 5 0.&0 m


5 4.84 cumec

K 4.7( cumec >.:

Len't% of Poer "uct 5 7&

2. Design o o*er Channel/,unnel+"esi'n disc%ar'e 5 2.7& cumec


/!* ?ed slope S= 5 1 in &00

?ed Widt% ? @ 5 2.1 m

FS" " 5 1.0& m

!ing $%& a"!a %$ X-s!*i%n

ross sectional area provided for Poer "uct 5 2.1 9 1.0& 5 2.21 sCm.

Wetted Perimeter 5 2.:


"esi'n disc%ar'e 5 2.7& cumec


/!* ?ed slope S 5 1 in &00


$%erefore area of ?" 5 4*3 9 a 9 % 5 4*3 9 0.3(1 9 0.1& 5 0.07 sCm

-nd area of flo 5 0.78& 9 1.4 9 1.4 6 0.072 5 1.47 sCm

Perimeter=

$an ; 5 0.(0

0.(0

5 31 de'rees

Hence etted perimeter 5 22*7 9 " 9 )3(062I4(+*3(0 5 3.(4 m

5 -*P 5 0.40 m

@ velocit, 5 "esi'n "isc%ar'e*-rea 5 1. m*sec

5 3.&8 cumec

K 3.47 cumec >.:

4. Design o De silting ,an#+"esi'n disc%ar'e 5 )4.33


54/80

317079208.,ls

5 0.22 m*sec

5 2.7& cm*sec

0.028 m*sec

Widt% of "e siltin' $an/ proposedW 5 (.2 m

5 2.31 m

5 2.&1 cm*sec

5 0.02&1 m*s 5 20.2 m

Len't% of nta/e side flumin' 5 m

Len't% of off ta/e side flumin' 5 1 m

$otal len't% of "e siltin' $an/ 5 21.1 m

"imensions of "esiltin' $an/= L 5 21.1 W 5 (.2 @ " 5 2.30& m.



"ra don dept% 5 2.& m

Free ?oard 5 1.( m



5 2 9 (0 9 2.8 5 33& cum




Full suppl, level 5 1703.(2 m

inimum dra don level 5 1701.12 m


5 2 m 5 1.2 m

5 0.&


5 1(8.2 m

5 7.80 m

"imensions of fore!a, tan/ L 5 1.0 m ? 5 7.0 m @ " 5 2.&0 m.

Jolume provided for stora'e 5 333 cum

K 41( cum

Hence >.:.


"esi'n disc%ar'e B 5 2.8 cumec

Full Suppl, Level at Fore!a, 5 rest of over flo section 5 1703.( m

-ssume dept% of overflo H 5 0.( @ L 5 & m

From eCuation B 5 1.71 9 L 9 = B 5 3.7

K 3.47 cumec >.:

$%erefore provide a spilla, &.00 m lon' @ 0.( m crest

. Design o enstoc#+

"esi'n disc%ar'e B 5 2.(( cumecFull Suppl, Level at Fore!a, 5 rest of over flo section 5 1703.(2 m

Lo est ele ation of penstoc/ 133( 12 m




oderated settlin' velocit, 5 Jm 5 Js 6 ).132*"1*2+ 9 Js


m+ 9 "

>penin' %ei'%t of penstoc/ includin' !ell mout% %e

5 2 9 "ia of Penstoc/




a

H3*2


55/80

317079208.,ls



5 0.8( m

Sa, 1.00 m

Jelocit, t%rou'% penstoc/ 5 3.3 m*sec

-rea of Penstoc/ 5 "esi'n disc%ar'e*Limitin' velocit, 5 0.7 sCm


-rea provided 5 22*)7I4+ 9 1.00 5 0.7 sCm

5 8.8 feet

)-ll parameters are in FPS+ 5 2.(8 m

$ater a''er+

a9imum ater level at fore!a, 5 1703.(2 m

Loest elvation of t%e penstoc/ 5 133(.12 m

5 3(7.&0 m



v 5 velocit, 5 2.((2 ÷ 0.78& 5 3.3 m*sec


5 1.00 0.02 5 &0

ead from 'rap% a 5 33&0 in FPS @ 1021.0



From 'rap% for D 5 17.0 @ : 5 0.48 P 5 0.03

$%erefore ratio of pressure rise to initial stead, %ead 5 2:P 5 0.02 Sa, 2.

$%erefore ultimate pressure includin' t%at of ater %ammer 5 3(7.& < 2. A of 3(7.& 5 378 m of ater

5 37.8 /'*sCcm.

$%erefore t%ic/ness of steel liner 5 P 9 " * 2S 5 1.8 cm 5 m

5 18.0 < 1.& 5 1

Sa, 20 mm

$%erefore area reCuired of pipe for eac% unit 5 0.3

5 0.7( m

Sa, 0.8 m

Provide 0.8 m internal diameter penstoc/ of 1( mm t%ic/ %avin' outer diameter of 0.83

-rea provided 5 22*)7I4+ 9 0.8 5 0.& sCm

K 0.3 s

Hence >.:.

$%erefore t%ic/ness of steel liner 5 P 9 " * 2S 5 1.44 cm 5 m

5 14.4 < 1.& 5 1

Sa, 1( mm. &draulic Design o ,ail 5ace Channel+


1*2




÷

$%us provide 8 mm t%ic/ steel liner for t%e first100 m 10 mm t%ic/ steel liner for t%e second 100 m12 mm t%ic/ steel liner for t%e last 100 m.

6Munction )anifold+ is reCuired to !e provided at t%e end of t%e penstoc/ for more t%an one unit%e present case for to units.

"iameter of Penstoc/ "2 5"

1 * 20.4

2


56/80

317079208.,ls


Let= ? 5 2.1 m @

FS" 5 1 m

1 in &00


Wetted Perimeter P 5 4.1 m

5 -*P 5 0.&1 m

= velocit, of flo @ 5 1.& m*sec"isc%ar'e B 5 3.34 cumec

K 3.33 cumec >.:



57/80

317079208.,ls


58/80

317079208.,ls


59/80

317079208.,ls

>:.


60/80

317079208.,ls


61/80

317079208.,ls


62/80

317079208.,ls


63/80

317079208.,ls


64/80

0.88

2

N 0.018

A 0.44

1

0.7

A 0.7 2.4

R 0.291667

: 149


65/80

ANALYSIS OF RATES

BASED ON UTTARANCHAL PWD SOR 2002 (Since April 2002)

Proec!" #ALI$AN$A%I SHP is*an! $&%m Risi!s = 190 m

Esala*i%n $%& *&!! !a&s /.:. = 10 &

L'or R'!e*

!s&i;*i%n

135.00 148.50

90.00 99.00

74.00 81.40

+'!eri'l* R'!e*

!s&i;*i%n

:*%n! $%&


66/80

55647

B4 S!eel per +T

is*an! (m)

&%m 0 *% 1 = 1 38.00 41.80 41.80&%m 1 *% 3 = 2 6.50 7.15 14.30&%m 3 *% 5 = 2 5.20 5.72 11.44

&%m 5 *% 10 = 5 4.50 4.95 24.75&%m 10 *% 20 = 10 3.80 4.18 41.80&%m 20 *% 30 = 10 3.30 3.63 36.30&%m 30 *% 40 = 10 3.00 3.30 33.00&%m 40 *% 50 = 10 2.60 2.86 28.60&%m 50 *% 190 = 140 2.20 2.42 338.80

>?>A/ 570.79 !a" l%a" ;*% 2 m @

1720.00 1892.00 1892.00Rs. 43 *l.al$ %$ a m.

:*aing 16.00 17.60 17.60BRAN >?>A/ 2480.39

285048

C4 Co'r*e3Fine Are'!e* per c

!a" l%a" ;*% 3 ain @45.00 49.50 49.50

Rs. 15.00 ;!& ain

?>A/ 413.60

:*aing 10.00 11.00 11.00BRAN >?>A/ 474.10

8984:0

D4 Bric,* per :000 No*4

is*an! (m)

&%m 0 *% 1 = 1 38.00 41.80 41.80&%m 1 *% 3 = 2 6.50 7.15 14.30&%m 3 *% 5 = 2 5.20 5.72 11.44&%m 5 *% 10 = 5 4.50 4.95 24.75&%m 10 *% 20 = 10 3.80 4.18 41.80&%m 20 *% 30 = 10 3.30 3.63 36.30&%m 30 *% 50 = 20 3.00 3.30 66.00&%m 50 *% 190 = 140 2.20 2.42 338.80

>?>A/ 575.19 !a" l%a" ;*% 3 ain @36.60 40.26 40.26

Rs. 12.20 ;!& ain

?>A/ 194.70

10.17 11.18 11.18

5.54 6.10 6.10

:*aing 9.30 10.23 10.23BRAN >?>A/ 837.66

837.66 ;!& 837.66 , 2.4 2010.38 !& 1000 N%s.

20:0 80

Ra*! as ;!& :?R2002 (Rs.m)

Ra*! a$*!& a""ing 10 # $%&!sala*i%n (Rs.m)

Am%n*(Rs.)

;!& m (ni*'*.

1.6m)

Ra*! as ;!& :?R2002 (Rs.m)

Ra*! a$*!& a""ing 10 # $%&!sala*i%n (Rs.m)

Am%n*(Rs.)

;!& *l.al$%$ a m

/%a"ing a* Risi!s as I*!m N%.146( ) @ 24.4m

Un%a"ing a* si*! as I*!m N%.147( )@ 13.30m

S'; R*4

S'; R*4

S R

S'; R*4


67/80

R'!e o- +'!eri'l* '! Si!e

A4 Ceen! (per ')

a& &a*! 275.00

.. @ 10# 27.50

a&*ag!:*aing 474.10

776.60

S'; 996460 3c

$4 Loc'l *'n>

a& &a*! 187.00

.. @ 10# 18.70

a&*ag!:*aing 474.10

679.80S'; 69?450 3c

H4 Tor S!eel

e@elopen! or, or,3<

m3

m3

m3

m3

m3

m3

m3

m3

m3

m3

m3

m3

m3

m3

m3

m3

m3

m3

m3

m3

m3


68/80


69/80

S'; 8780480 3+T

+ATERIAL RATES AT SITE

%& :*!!l 1000 26000 0 2480.4 28480.40

3 :*&*&al :*!!l 1000 27000 2700 2480.4 32180.40

4 &is 1000 N%s. 2400 2300 230 2010.40 4540.40

5 :*%n! $%& an" sn"&i!s 2 20.0 40.00

>%*al 2653.92%n*&a*%& &%$i* @ 10# 265.39

R'!e per C 2009 36 +( 2653 92 + 265 39 ) 2 8321 = 3040 15

:l.N%.

Uni*F*.(g)

asiRa*!

%n*&a*%&&%$i*

a&*ag!;*% :i*!

>%*al Ra*!Rs.Uni*

:l.N%.

Ra*!Rs.Uni*

Am%n*(Rs.)

Ea&*'%& in !,aa*i%n in s%il 'i* !a&* mi,!" 'i*D%l"!& inl"ing all l!a" an" li$* 'i* all ma*!&ialslaD%& > !*.&!i&!" $%& ;&%;!& %m;l!*i%n %$'%& as ;!& F :?R I*!m N%. 2.6.1. + E,*&a $%&!sala*i%n $%& *&!! &s.

Ea&*'%& in $%n"a*i%n in all *;! %$ s%il inl"ing alll!a" an" li$* 'i* all ma*!&ials laD%& >

!*.&!i&!" $%& ;&%;!& %m;l!*i%n %$ '%& as ;!&F :?R I*!m N%. 2.8.1.

**ing !& a&" &% an" !& a&" sal! an"Dlas*ing D%l"!&s inl"ing all ma*!&ial laD%& an"> !*. $%& ;&%;!& %m;l!*i%n %$ '%& as ;!& F:?R I*!m N%. 2.7.2

1H3H6 'i* !m!n* %a&s! san" an" 20-40 mm si! s*%n! Dallas* inl"ing %s* %$ allma*!&ials laD%& > !*.


70/80

5

(') +'!eri'l -or : c

:*%n! allas* (20 mm) m 0.85 861.30 732.11

%a&s! san" m 0.42 776.60 326.17

!m!n* Dag 6 214.35 1286.10>%*al 2344.38

() L'or -or :00 C-!4 an" sn"&i!s 2 20.0 40.00

2653.92

%n*&a*%& &%$i* @ 10# 265.39

R'!e per C 2344.38 +( 2653.92 + 265.39 ) 2.8321 = 3375.17S'; an" sn"&i!s 2 20.0 40.00

2653.92

%n*&a*%& &%$i* @ 10# 265.39

R'!e per C 2282.67 +( 2653.92 + 265.39 ) 2.8321 = 3313.46

S'; !*.


71/80

>%*al 2653.92

%n*&a*%& &%$i* @ 10# 265.39

R'!e per C 2722.44 +( 2653.92 + 265.39 ) 2.8321 = 3753.24

S'; %*al 2722.44

() L'or -or :00 C-!4%& :*!!l 'i* 5# 'as*ag! 1.05 28480.40 29904.42()lasmi* !& a 1 148.50 148.50

R 1H1.5H3 'i* !m!n* %a&s! san" an" 20 mm si! s*%n! Dallas* inl"ing %s* %$ all ma*!&ialslaD%& > !*. in *&!n '!i& ;%'!& "* ;%'!& ann!l an%&s slaD $%n"a*i%n inl. R Din"ingan" $i,ing *! sam! 'i* 24 FB an" inl.!n*!&ing

Extra labour lasmi*

Extra labour lasmi*

L'or -or : +T ( :I N%. 314) per c!4


72/80

270.60

A"" 16 %li"a 45.10

> 'i* !,*&a laD%& "! *% l!ss!& %*;* in ills 0.8 25.00 20.00

335.70


73/80

%n*&a*%& ;&%$i* @ 10# 33.57

369.27

R'!e per +T 29904.42 + 369.27 , 1000 50.802 = 37173.19

S'; %*al 1451.39

() L'or -or :00 C-!4 an" sn"&i!s 0.5 25.0 12.50

>%*al 1567.26

%n*&a*%& &%$i* @ 10# 156.73

R'!e per C 1451.39 +( 1567.26 + 156.73 ) 2.8321 = 2060.12

S'; 2060 :7

L'or -or : +T ( :I N%. 313) per c!4


74/80

(') +'!eri'l -or : c


75/80

:*%n! m 1.1 776.60 854.26

%a&s! san" m 0.3 776.60 232.98

!m!n* Dag 1.4 214.35 300.09>%*al 1387.33

() L'or -or :00 C-!4 As ;!& F :?R Rs. 190.00 ;!& m + 10 # !,*&a $%& !sala*i%n 209.00

R'!e per C 1596.33

S'; :7?64%*al 46.83

() L'or -or :00 C-!4 an" sn"&i!s 1 20.0 20.00

>%*al 472.59

%n*&a*%& &%$i* @ 10# 47.26

519.85

R'!e per S4 519.85 9.29 = 55.96

102.78

S'; :02450

19!m!n* %in*ing in 1H2 <

(') +'!eri'l -or : *4

!m!n* Dag 0.142 214.35 30.44

: an" laing %$ 'i&! &a*!s inl"ing %s* %$ B.I.'i&! m!s an" *ig*!ning %$ 'i&! m!s an"$illing %$ s*%n! !*.an" all laD%& ma*!&ial > !*. &!i&!" $%& ;&%;!& %m;l!*i%n %$ '%&.

Assming 'i&! &a*! si! 3.0 , 1.5 , 1.00 m.


76/80

() L'or -or :00 C-!4


77/80


78/80

S'r; o- R'!e* o- I!e*

Nam! %$ I*!m Uni*

1 Ea&* '%& in :


79/80

!sign l%%"

ll s;;l l!!l a* '!i&

Gig $l%%" l!!l a* '!i& si"!

!sign isa&g!

F/ %&&!s;%n"ing *% !&% "isa&g!

N%&mal >F/ %&&!s;%n"ing *% 2 main! "isa&g!Cen!er line o- pen*!oc, in!',e openin

ll s;;l l!!l a* $%&!Da m

&a Ra /%ss 0.35

! *% L $%& n n%s 0.6

>&ansi*i%n an" Di$&$ia*i%n 0.65

E,i* /%ss 1

To!'l lo** m

S';

B&%ss G!a"

N!* G!a"

Di*c1're c'lcl'!ion* -or @'rio* ci@il *!rc!re*

!sign "isa&g! %$ *&Din!

isa&g! %$ >R an" ;!ns*%

isa&g! $%& $lsing $%&!Da

In%ming "isa&g! *% *an

isa&g! $%& $lsing *an

22g

0.5L2

2g2 n2/A2(4)43

n DL22g

K n L22g

K*

L22g K*

n D$ L22g

D$

K*$

L22g K

*$

K*D L22g K

*D

isa&g! $%& $%&!Da inl"ing $lsing an" ;%'!&ann!l %*g%ing $&%m *an


80/80

isa&g! %$ ;%'!& "* inl"ing %&*!, *D!s

isa&g! %$ %&*!, *D!

isa&g! $&%m *&!n '!i& in*% in*a!

isa&g! $%& singl! !,l"!& $&%m in*a!

Ag "isa&g! $%& *an "!sign

Trenc1 eir 'n> in!',e ell

Ri!& sl%;! a* '!i& l%a*i%n (A) a

A&!a %$ a*m!n* in s ms (A) A %ns*an* $%& Gills 14

Lal! %$ G

R/ %$ ig $l%%" l!!l=G+*%; R/ %$ "i!&si%n '!i&

Rg%si* %!$$ii!n* ŋ 0.222(A)0.33

A34

ma,

=1.71 X / X G32

Civil Formula

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Transcript of Civil Formula