Assignment 2 2012
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7/29/2019 Assignment 2 2012
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C
ST
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Due:
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ame: RIICCW
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7/29/2019 Assignment 2 2012
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Assignment2 RIICCWD530A Preparedetaileddesignofsurfacedrainage
Mark: 80
Marksaregivenforcorrectanswers,correctworkingsandforclearandprofessionalsettingoutofassignmentquestions.Sopleaseshowallcalculations,stateand
referenceyourreasoningforanswersandchoicesinanswers.Showformulaeused
andwheredataforthoseformulaewerederivedorobtainedfrom.
IncludeexcelandAutoCADfileswhereused.Ensurethesefilesareprintreadyand
informationwithinthefilesisfullylabelled.
Yourassignmentshouldconsistofasinglemasterfilewhichcontainsallthe
assignmentquestionsandtheanswers.Thisfileshouldrefertootherfilessubmitted
asappendixes.
For
example:
Masterfileisnamed: JohnSmithAssignment1.pdf
Additionalfilesare: JohnSmithassignment1appendix1.xls
Assignment2isdesignedtobuildonassignment1.Pleasedonotattemptassignment2untilyouhaveachievedapassmarkof60%inassignment1.In
assignment2therearemoredecisionsthatyouneedtomake,justifyandreference.
Themajorityofmarksareforcorrectworkingsandforclearandprofessionalsetting
outof
assignment
questions.
So
please
show
all
calculations,
state
and
reference
yourreasoningforanswersandchoicesinanswers,andshowformulaeusedand
wheredataforthoseformulaswasderivedorobtainedfrom.Takeparticularcarein
justifyingwhyyouhavemadeyourchoicesofdesignorcalculations.
Apassmarkof60%isrequiredforeveryquestioninassignment2Pleasedonotattemptassignment3beforeyouhaveachievedtherequiredpass.
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7/29/2019 Assignment 2 2012
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Qu
BashoimpimphasbeB:
stion 1
ed on a pawn in the fiervious; caervious ara return psed in urb
(a) Calcul
(b) Calculpipe 1)
rcel of landgure belowtchment Bas are direriod of 5 yn areas o
te the pea
te the size
atchmen
A
B
Secti
in Tamwor. Catchmehas an arectly connecars. The A
Tamworth.
flows for c
of pipe 1 a
t Surfa
Pervio
Imper
Pervio
Imper
n 1 ( 4
th, considet A has anof 3.2 ha
ted to theR&R recoThe follo
atchment
nd 2. (Assu
e C
us 0.2
ious 0.9
us 0.2
ious 0.9
marks
r the two inarea of 1.3nd is 60%tormwatermends thing criterio
and B.
me pipe 2
L(m)
6 65
87
6 155
75
[40
lets and twha and isimperviousinlets. Thekinematicapplies to
ontinues t
n* So
0.12 0.0
0.01 0.0
0.12 0.0
0.01 0.0
.0]
o pipes as0%. Alldesign storwave equacatchmen
e slope fr
15
5
15
mtionA &
m
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7/29/2019 Assignment 2 2012
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Section 2 ( 40marks )
Question1 (40Marks)Findasuitablesizeforaconcretepipeculverttodischargeaflowof2.9m
3/switha
maximumoutletvelocityof2.4m/s.Giventhatthelengthoftheculvertis20monan
invertslopeof0.36%andthetailwaterdepthis0.7m.
Theinlettypeofpipeisgrooveandwithheadwaterandhasthefollowingcharacteristics:
ke=0.20andn=0.012.
Amaximumpipesizeof825mmistobeused.
(a) TabulatetheresultsforallthreepipesizesontheRTAstandardform.
(b) Selectthemostsuitablepipesizefortheculvertanddiscusstheadvantagesanddisadvantagesofyourselection.Youmayconsiderthemethodsofculvertoperation
explainedinUnit4.
Pleaseincludetheallfigureswithdrawnlineswhichyouusedtoformulatepart1a.