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首页> 外文期刊>KSCE journal of civil engineering >A study to determine the location of perforated drainpipe in a levee for controlling the seepage line
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A study to determine the location of perforated drainpipe in a levee for controlling the seepage line

机译：确定堤坝中穿孔排水管位置以控制渗水线的研究

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Levees are facilities constructed along river to protect floodplains against flooding. However, levee failures are also possible if seepage reaches landside surface of the levee. The seepage on the surface of the landside slope can be prevented by efficient design of levee drainage systems. This study aims to show the seepage control potential on levees by installation of perforated drainpipes, which was verified through hydraulic experiments. Scenarios were performed with four different water stages at riverside. For each scenario, the piezometric heads located at the bottom of the experimental levee were measured. The results of the hydraulic experiments showed that the precise positioning of perforated drainpipes is vital since it greatly affects the amount of seepage in the levee. The SEEP/W model that was calibrated and verified with the experiment results was used to suggest appropriate installation location range of the perforated drainpipe. From the numerical simulation, as the central location of perforated drainpipe is closer to landside levee toe horizontally and to foundation surface vertically, the safety of levee was increased from the seepage failure.
机译：堤防是沿河建造的设施，用于保护洪泛区免受洪水侵袭。但是，如果渗流到达堤防的陆地表面，堤防也可能发生故障。可以通过有效设计堤防排水系统来防止陆地边坡表面的渗水。这项研究的目的是通过安装穿孔排水管来显示堤防的防渗潜力，并通过水力实验进行了验证。在河边用四个不同的水位进行了情景分析。对于每种情况，都测量了位于实验堤坝底部的测压头。水力实验的结果表明，多孔排水管的精确定位至关重要，因为它会极大地影响堤防中的渗漏量。使用实验结果进行校准和验证的SEEP / W模型用于建议多孔排水管的合适安装位置范围。从数值模拟看，由于多孔排水管的中心位置水平靠近岸边堤防脚趾，垂直靠近地基表面，因此渗漏破坏增加了堤防的安全性。

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