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Influence of pore water pressure to seepage and stability of embankment dam (case study of Sermo Dam Yogyakarta, Indonesia)

机译：孔隙水压力对堤坝渗流和稳定性的影响（印度尼西亚日惹Sermo大坝案例研究）

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摘要

Today, water requirements are not analogously with its availability. Therefore, build water reservoir dam is one of the simple concepts for fulfilling water requirements. Embankment dam is one of the most popular dam build in Indonesia. Stability of embankment dam should be taken into account to evaluate the safety condition in retaining water. Safety against seepage is one of the most important steps for checking the possibility of failure of embankment dam. PLAXIS is alternative software that can be used for evaluating safety of embankment dam due to seepage condition. This paper explains the study of pore water pressure and seepage effects against Sermo Dam safety using PLAXIS and compares it with field measurement data from piezometer and V-Notch monitoring. The study was conducted during dam operational conditions. The analysis was carried out using Mohr-Coulomb model to calculate discharge of seepage and settlement. The value of pore water pressures within the model, upstream and downstream, positions are then reviewed with the real dam. The results of model analysis shows that the more higher water level within the dam reservoir the more higher pore water pressure will be happened that affects in increasing discharge of seepage and settlement of dam.
机译：如今，水的需求量已不再与水的供应量类似。因此，修建水库大坝是满足水需求的简单概念之一。堤坝是印度尼西亚最受欢迎的水坝建设之一。评估堤坝的安全状况时应考虑堤坝的稳定性。防渗安全是检查堤坝故障可能性的最重要步骤之一。 PLAXIS是替代软件，可用于评估由于渗流情况而引起的堤坝安全性。本文解释了使用PLAXIS研究孔隙水压力和渗流对Sermo大坝安全性的影响，并将其与压力计和V型缺口监测的现场测量数据进行了比较。该研究是在大坝运行条件下进行的。使用Mohr-Coulomb模型进行分析以计算渗流和沉降量。然后，使用实际大坝查看模型中上游和下游位置的孔隙水压力值。模型分析结果表明，大坝水库水位越高，孔隙水压力越大，影响大坝渗漏和沉降的增加。

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