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BREAKWATERS

BY,

  SUMAN

KUMAR  M-TECH

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 What is Breakwater?

• A structure protecting a shore area, harbor, anchorageor basin from wave disturbance.

•

A barrier that breaks the force of waves, as before a harbor.

• Breakwaters are structures constructed on coasts aspart of coastal defense or to protect an anchorage from

the eects of both weather and long shore drift.

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What’s the eed of Breakwater?

• !o provide shelter from waves.

• !hrough this shelter, to manipulate the littoral"sand

transport conditions and thereb# to trap some sandentrance inside the Anchorage Area.

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Breakwaters:

Three a!"r #ate$"r%es a##"r&%'$ t" the()'#t%"'a*

re+)%ree'ts: 

A R)*e M")'& Breakwaters

B .ert%#a*-wa** reakwaters

C /*"at%'$ reakwaters

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RUBBE MOUN BREAKWATER

• A reakwater #"'str)#te& 2 a heter"$e'e")s asse*a$e "('at)ra*

  r)*e "r )'&resse& st"'e3

• Whe' water &eths are *ar$e RBW a2 e )'e#"'"%#a* %' 5%ew "( 

  h)$e 5"*)e "( r"#ks re+)%re&3• B)%*t )t" water &eth "( 03

• N"t s)%ta*e whe' sa#e %s a r"*e3 7( the har"r s%&e a2 ha5et"

  e )se& ("r erth%'$ "( sh%s, the RBW w%th %ts s*"%'$ (a#es %s'"t

  s)%ta*e ("r erth%'$3• These t2e "( reakwaters &%ss%ate the %'#%&e't wa5e e'er$2 2

  ("r#%'$ the t" reak "' a s*"e a'& th)s &" '"t r"&)#eare#%a*e

  re8e#t%"'3

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  STRUCTURACOM9ONENT

1 C"'str)#te& 2 'at)ra* r)*e "r )'&resse& st"'es3

C"arat%5e*2 sa(e3

; Has a r"a& ase wh%#h he*s %' &%str%)t%'$ the *"a& "'

a w%&er area3

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A.ANTA#%a* ar")r

  *"#ks 3

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.ERT7CA BREAKWATER

• A reakwater ("re& 2 the #"'str)#t%"' %' are$)*ar a'&

  s2steat%# a''er "( a 5ert%#a* wa** "( as"'r2#"'#rete *"#ks "r

  ass #"'#rete, w%th 5ert%#a* a'& seawar& (a#e3

•  Re8e#t the %'#%&e't wa5es w%th")t &%ss%at%'$)#h wa5e e'er$23

• N"ra**2 %t %s #"'str)#te& %' *"#at%"'s where the&eth "( the sea %s

  $reater tha' tw%#e the &es%$' wa5e he%$ht3

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9re(erre& t" RMBW ("r ("**"w%'$reas"'s:

• sa5%'$ %' ater%a* &)e t" sa**er "&2 w%&th3

• Ra%&%t2 %' #"'str)#t%"'3

• N"' a5a%*a%*%t2 "( *ar$e +)a't%t%es "( st"'es3

• O##)%es *ess sa#e3

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E/7N7T7ON SKETCH

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%sa&5a'ta$es "( 5ert%#a* wa**reak water

• Sea "tt" has t" e *e5e*e& a'& reare& ("r *a#ee'ts "(*ar$e

  *"#ks "r #a%ss"'s3

• /")'&at%"'s a&e "( >'e sa'& a2 #a)se er"s%"' a'& sett*ee't3

• Er"s%"' a2 #a)se t%*t%'$ "r &%s*a#ee't "( *ar$e "'"*%ths3

• %?#)*t a'& e@e's%5e t" rea%r3

• B)%*&%'$ "( #a%ss"'s a'& *a)'#h%'$ "r t"w%'$ the %'t" "s%t%"'re+)%re

  se#%a* *a'& a'& water areas es%&e %'5"*5ee't "( hea52

#"'str)#t%"'  e+)%e'ts3

• Re+)%re ("r w"rk, +)a*%t2 #"'#rete, sk%**e& *a")r, at#h%'$*a'ts a'&

  8"at%'$ #ra(ts3

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/OAT7N< BREAKWATER

• A re"5a*e reakwater #"'str)#te& 2 #a%ss"'s"r

  "'t""'s w%th 5a*5es ("r tr%%'$ wh%*st a8"ata'&

  ("r s%'k%'$ whe' %s "s%t%"' a'& )#"''e#t%"'s ("r

  re8"at%'$, ""re& t" the sea e&3

• %'e@e's%5e, eas%*2 "5e& (r" s%te t" s%te, "(te'

5er2

  +)%#k*2 (ar%#ate&3

• %'ee#t%5e t" *"'$ wa5es, )st e a'#h"re&3

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TY97CA /OAT7N<BREAKWATERS

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