IWMP-2 - Commissionerate of Rural Development Gujarat State ...

Detailed Project Report IWMP-2
2. Length of Basin = 5 (d2 - d1)
Lb = 3.54 Mt.
Provide Apron Length = 2.50 mt
Thickness of Apron :-
Ww = 1.00
d2 - d1 x Ww__ Wc = 2.40
Th =
2 Wc- Ww
where Wc = Specific gravity of Concrete, Ww = Sp. Gr. of Water
= {(d2 - d1) / 2} x {(Ww)/(Wc - Ww)}
= 0.25 Mt.
Design Thickness of Apron = 0.25 Mt.
Provide CC 1:3:6 Thickness = 0.10 Mt.
C.C. 1:4:8 = 0.20 Mt.
Provide Top RI of Apron = Bed RI say 98.70 mt.
Provide End sill as under :
d2 = 0.854
Height of End Sill
He = 0.2 x D2
He = 0.171 However, provide Minimum 0.60 Mt.
Top Width of End Sill
Te = 0.02 x D2
Te = 0.017 However, provide Minimum 0.60 Mt.
Gujarat State Watershed Management Agency
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