EVALUASI DIMENSI RUANG OLAK BENDUNG CIHERANG KABUPATEN BANDUNG

• Main Author: Rasjid, Abd.Rachman
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/5379
• Institution: Institut Teknologi Bandung

<b>Abstract:<p align="justify"> <br /> <br /> <br /> <br /> Stilling basin is building on share downstream weir body that are limited by jetty base weir that function to reduce the energy water as effect damming up in order to water in downstream of weir do not bring about local scoring.<p align="justify"> <br /> <br /> <br /> In placing concept using stilling basin on dam, both of new weir and problem weir are needed by made a research with the model test. For design weir hydraulic with stilling basin, approach hydraulic research that are made systematic its final result will be obtained a more accurate fonnula.<p align="justify"> <br /> <br /> <br /> Part of downstream stilling basin Ciherang weir have experienced local scoring, in research test physical model two dimension scale 1 : 30 with stream flow rate of flood period 50 annual result that be obtained as follows: <br /> a. Serial Model 0 <br /> Scoring that happened on downstream stilling basin building as far as more than 30 meters and deepness more than 3,00 meters. <br /> b. Serial Model 1 <br /> Scoring that happened on downstream stilling basin building as far as more than 27 meters with deepness 2.90 meters. <br /> c. Serial Model 2 <br /> Scoring that happened on downstream stilling basin building as far as more than 27 meters with deepness 2.87 meters. <br /> d. Serial Model 3 <br /> Scoring that happened on downstream stilling basin building as far as more than 24 meters with deepness 2,61 meters.<p align="justify"> <br /> <br /> <br /> From result research test model, long scoring happened because by rate of flow flood annual and scoring on foot of stilling basin because by dominant flood that often happen.<p align="justify"> <br /> <br /> <br /> For returning stilling basin building function at Ciherang weir that with condition moment, necessary are made rehabilitate the building with increasing float back part, float of middle and block of face so that water energy that are bring about on building can be reduce, long and deepness scoring will be relative minimize.