UJI MODEL FISIK BANGUNAN PELIMPAH BENDUNGAN SAKA GILAS DENGAN SKALA 1:50

Jurnal Teknik Pengairan Pub Date : 2019-07-18 DOI:10.21776/UB.PENGAIRAN.2019.010.01.7

Rahmah Dara Lufira, M. Sajali, Suwanto Marsudi, Very Dermawan

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引用次数: 2

Abstract

The physical hydraulic model carried out in the laboratory is intended to determine the hydraulic behavior of the flow in hydraulic structures. The aim of Hydraulic model test of Sakagilas Dam spillway is to determine the flow profile that occurs in spillway system, including flow depth, velocity, water flow pressure, and Froude numbers. Also to find out the hydraulic performance of side spillway design, transition channel, chute way channel, energy dissipator, and escape channel. Investigation of water flow pressure in the spillway system (side channel spillway, transition channel, and especially chute way channel) was measured and analyzed to determine the condition of structure safety against cavitation and vibration flow. The spillway of Saka Gilas Dam is a side channel spillway (Fixed+Gated) with an Ogee spillway. The shape of the side spillway is circular quarter circle (45⁰). Preliminary observations on the physical model test are carried out under the condition of Original Design, which if there is a poor flow hydraulic behavior, design modifications will be made. The design modification is intended to get the best flow hydraulic behavior, according to the standard design criteria for the side channel spillway system.

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物理模型的分级分级分级分级分级分级分级

在实验室中进行的物理水力模型旨在确定水工建筑物中水流的水力特性。Sakagilas大坝溢洪道水工模型试验的目的是确定溢洪道系统中发生的水流剖面，包括水流深度、流速、水流压力和弗劳德数。并对侧溢洪道设计、过渡通道、溜槽通道、消能通道、逃生通道的水力性能进行了研究。对溢洪道系统(侧道、过渡道、特别是溜槽道)的水流压力进行了测量和分析，确定了结构抗空化和振动流的安全条件。萨卡吉拉斯大坝泄洪道为侧道式泄洪道(固定+门控)，采用Ogee式泄洪道。侧溢洪道的形状是圆形的四分之一圆(45⁰)。物理模型试验的初步观察是在原始设计条件下进行的，如果存在较差的流动水力性能，将对设计进行修改。根据侧道溢洪道系统的标准设计准则，设计修改是为了获得最佳的流动水力性能。

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Jurnal Teknik Pengairan

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