DESIGN OF WAY SEKAMPUNG DOWNSTREAM EMBANKMENT TO PROTECT POND IN SRAGI DISTRICT, SOUTH LAMPUNG REGENCY
Sragi District, South Lampung Regency has the potential for vaname shrimp pond aquaculture with an area of more than 1200 ha. The production of this pond cultivation is not optimal and tends to decrease every year, one of the causes is flooding. The flooding that occurred was caused by sedimentat...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/68579 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Sragi District, South Lampung Regency has the potential for vaname shrimp pond
aquaculture with an area of more than 1200 ha. The production of this pond
cultivation is not optimal and tends to decrease every year, one of the causes is
flooding. The flooding that occurred was caused by sedimentation in the Way
Sekampung’s river so that the capacity of the river was unable to drain flood
discharge. The purpose of this study is to plan an embankment in the Sekampung
River downstream to prevent flooding in the pond area of Sragi District. The
hydrological analysis of the Sekampung watershed resulted in a planned flood
discharge of a 10-year re-period having a peak of 971.1 m3/s and was influenced
by tides with an MHWL of 1,623 m. HEC-RAS modeling showed that the
maximum capacity of the river was 200 m3/s and the maximum flood runoff was
as high as 3.13 m of the LOB. The type of embankment plan is a soil urugan with
a length of 10.8 km and varying dimensions adjusting to the height of the flood.
The stability of the embankment shows a safe number with SF = 3,882 in dry
conditions, SF = 7,031 in FWL conditions, as well as resistance to seepage.
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