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首页> 外文会议>International Conference on Dam Safety Management and Engineering >Physical Modelling Study on Sediment Removal of Sungai Habu and Sungai Ringlet, Cameron Highlands
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Physical Modelling Study on Sediment Removal of Sungai Habu and Sungai Ringlet, Cameron Highlands

机译：沉积物拆除沉积物的物理建模研究，沙朗高地

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Numbers of reservoir in Malaysia has experienced excessive sedimentation problem due to soil erosion caused by rapid urbanization, infrastructure development and uncontrolled agricultural activities. With an increased in sediment deposition rate, theapproximated useful life of the reservoir is significantly shorten. This also reduces the reservoir power generation capacity and dangerously affects dam stability and flood control storage. The aim of this study is to simulate alternative method for efficient sediment removal in Ringlet reservoir. The construction of physical sediment removal model of Ringlet Reservoir took place in the Hydraulic and Instrumentation Laboratory, National Hydraulic Research Institute of Malaysia (NAHRIM), with geometricscale effect of 1:30. Sungai Habu and Ringlet were tested up to three different ARI of 1, 5 and 100. Groyne was identified as control mitigation structure for sediment removal and total of 23 groynes were constructed. The finding showed that the gross deposition and erosion areas increased as the return period rose. It was also noticed that bed sediment in 100 year ARI was eroded more and further than 1 and 5 year ARI due to local scour resulted from the flow transition from fixed bed to mobile bed. Themorphological changes occurred at Habu is due to the local flow. The movement of bed sediment at Habu end were deposited before the check dam and was not travel further downstream. The results of Ringlet showed that the sediment was deposited mostly before the first check dam for 1 year ARI. Sediments may further be transported for 5 ARI and 100 years ARI which then deposited before the second check dam.
机译：由于快速城市化，基础设施发展和不受控制的农业活动引起的土壤侵蚀，马来西亚水库数量经历了过度沉降问题。随着沉积物沉积速率的增加，储层的Theapproximated使用寿命明显缩短。这也降低了水库发电能力，危险地影响了大坝稳定性和防洪储存。本研究的目的是模拟热带储存器中有效沉积物去除的替代方法。马来西亚国家水力研究院（Nahrem）的液压和仪表实验室液压和仪表实验室施工沉积物去除模型，1:30的地理测定效应。 Sungai Habu和林素最多可测试1,5和100的三种不同的ARI .Groyne被鉴定为对沉积物去除的控制缓解结构，并且构建了23种Groynes。该发现表明，随着返回期升起，沉积沉积和侵蚀区域增加。还注意到，由于局部冲突，100年ARI在100年的床沉积物被侵蚀更多，比1和5年的ARI从固定床转换到移动床。 HABU发生的题写变化是由于局部流动。床沉积物在HABU END之前的运动沉积在滤座坝之前，并且在下游进一步旅行。林料的结果表明，沉积物主要沉积在第一个检查坝前1年的ARI。沉积物可以进一步运输5 ARI和100年的ARI，然后在第二个校验坝之前沉积。

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