Abstract:
This paper presents the application of sluice
gates to control the excess runoff in the wide and very
mild channel in an industrial area which is located in the
Cikande, Banten, Indonesia. St. Venant equation is used
and solved by 1-D model HEC-RAS. The result shows that
the main channel can be utilized as a long storage or long
reservoir if it is combined with sluice gates. Various scenarios
of gates opening and closing operation have been conducted
in order to determine the most effective gates operation.
Two options of gate operations have been analyzed.
The first option is the automatic option in which the gates
are able to open and close automatically at a certain water
level in the main channel. The second is manual option
where the gates constantly open at a certain height. The
results show that the main channel successfully reduced
the 10 years of flood discharge from 37.45 to 17.37 m3/s
for the automatic gates and from 37.45 to 17.38 m3/s for
the constant opening. Although both options give the same
result for controlling the flood, there are several differences
between the options, especially the capability of both the
systems to provide raw water for the industrial purposes.
In conclusion, the automatic operation is the most effective
operation, despite the fact that it is more expensive and
harder to implement than the manual operation.
