Landslide dams inevitably demonstrate the potential for catastrophic failure with high-risk damage to life and property at the downstream site. Hence, knowledge of the internal stability of dam materials is a key to predicting the seepage failure of landslide dams. In this study, experiments were conducted to examine the relationship between seepage volume and total suspended solids (TSS) of seepage water based on hydro mechanical constrains. Understanding the relationship between the seepage volume and TSS with hydro-mechanical constraints supports the prediction of the seepage failure of landslide dams at the field level. Experiments were conducted with a mixed sample of silica sands. Seepage water was collected from a flume tank with the facility to measure the hydraulic gradient, vertical displacement, and seepage water volume. Grain size affected the life span of the dam. The seepage volume increased with the increase in the percentage of silica sand S4, whereas TSS increased with the increase in the percentage of silica sand S8. With the increase in the dam height, the dam life decreases for low coeficient of uniformity of the grain size distribution. With the increase in the reservoir size, TSS decreased, and the total seepage volume increased. Dam failure depends on the particle size, dam geometry, inflow rates, reservoir size, hydraulic gradient, and seepage water volume, and TSS of seepage water. The results indicated that with the increase in fine particles, the life span decreases, and TSS increases. With the increase in the flow rate, the dam life span decreases, and the TSS and seepage volume rate increase.The dam height leads to an increase seepage volume with low TSS, where the life span of the dam also depends on the particle size distribution With the increase in the reservoir size, the seepage water volume decreases with low TSS.

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渗流水量与渗流引起的滑坡坝失稳总悬浮固体之间的关系：一项实验研究

滑坡水坝不可避免地显示出灾难性破坏的可能性，并对下游站点的生命和财产造成高风险的破坏。因此，了解大坝材料的内部稳定性是预测滑坡大坝渗流破坏的关键。在这项研究中，进行了实验以检验基于水力机械约束的渗流量与渗水总悬浮固体（TSS）之间的关系。理解渗流量与受水力约束的TSS之间的关系有助于预测滑坡坝在野外的渗流破坏。用硅砂的混合样品进行实验。从带有测量水力梯度，垂直位移和渗水量的设备的水槽水箱中收集渗水。粒度影响大坝的寿命。渗流量随硅砂S4含量的增加而增加，而渗流率随硅砂S8含量的增加而增加。随着坝高的增加，坝寿命降低，因为粒度分布的均匀性低。随着储层尺寸的增加，TSS减小，总渗流量增加。大坝的破坏取决于颗粒大小，大坝的几何形状，流入速率，储层大小，水力梯度和渗水量以及渗水的TSS。结果表明，随着细颗粒的增加，寿命缩短，TSS增加。随着流量的增加，大坝的寿命缩短，TSS和渗水体积率增加。