#TITLE_ALTERNATIVE#
Continuing the research before, this project study about comparison between local scouring around vertical wall and vertical wing-wall abutment in straight channel, 90 and 180 curve channel. Scouring because of water structure, such as abutment, and sediment transport also occurred along the dischar...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/9605 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Continuing the research before, this project study about comparison between local scouring around vertical wall and vertical wing-wall abutment in straight channel, 90 and 180 curve channel. Scouring because of water structure, such as abutment, and sediment transport also occurred along the discharge, with value 4, 5, 6, 7 liter/second in model. Laboratory research is used as method. Physical parameter, are velocity and depth of scouring, analytically compared by Laursen (1960), Froehlich (1989), and Mellvile (1997) Formulas to calculate maximum depth of scouring. The result from each calculation will be compared with the observation data. Observation and measuring for initial condition to both parameters are also done. The conclusions are maximum scouring for vertical wall abutment is occurred around abutment upstream relatively. It's different with vertical wing-wall abutment result; the maximum scouring is occurred around middle abutment. Sedimentation for both of abutment is around abutment downstream. The maximum value of scouring and sedimentation is occurred along 7 liter/second discharge. From the analytical comparison, Laursen's Formula gives closer accuracy for vertical wall abutment, the percentage of fault is about 20,02%. While, Froehlich Formula gives 28,17% for wing-wall abutment. |
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