Trench weir

Legend

To be filled by user
Output
        






Discharge to be passed through. Q:
Length of trench weir. L:
Width of Trench weir. B: m




Depth of flow at the end of trench d:

CALCULATIONS FOR BED PROFILE OF TRENCH WEIR

 Bed level

Sl. X Bed Level Water Level


Flood Discharge

Width of Khad     



SCOUR DEPTH :-
R:

LENGTH OF U.S BLOCK PROTECTION = D
A:
Hence Depth of Flow at wier axis is. d . Put value of d till A=B.
B:
Length of Floor U/S provided

LENGTH OF D/S BLOCK PROTECTION
Length of Floor D/S provided


Depth of U/S Toe WALL
Floor Level at U/S end.=
H.F.L. at U/S End=
U/S Cut-Off shall cater for scour up to
Max. Scour Level
d:
Also the depth of U/S cut-off below Floor level


Down Stream Toe Wall :-
Floor Level at D/S end
H.F.L. at U/S End
D/S cut Shall cater for 1.25R
Bottom Level of Cut-off
Depth of D/S cut-off
Also Depth of D/S Cut-ff