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我国有很多尾矿坝、灰渣坝及部分土坝,由于坝体排渗设施不完善或堆坝方法不同等原因,致使坝体浸润线升高,并从坝坡面上出露,有的还产生集中渗漏和管涌破坏,严重地影响坝体的安全,溃坝事故时有发生。特别在地震区,地震发生时,由于坝体浸润线高,致使坝体内部由于地震产生的孔隙水压力增大,造成坝体边坡的塌滑,引
There are many tailings dam, ash dam and some earth dams in our country. Due to imperfect drainage facilities of dam body or different methods of heap dam, the saturation line of dam body increases and emerges from the slope surface of dam, and some Also produce concentrated leakage and piping damage, seriously affecting the safety of dam, dam failure occurred from time to time. Especially in the earthquake area and the earthquake, due to the high infiltration line of the dam body, the pressure of pore water in the dam body increases due to the earthquake, resulting in the collapse of the dam slope