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针对目前某病险土石斜墙坝斜墙以及砂石料之间的渗透系数差异不大,从而导致坝体的侵润线过高、下游的坝坡不稳定等现象,完全不满足规范所要求的标准,应采用粘土防渗墙的防御措施,对该水库土石坝设置防渗墙的之后所呈现的数据进行详细的分析,并且利用平衡方法来对下游坝坡的稳定性进行具体分析。分析的结果可以看出:使用粘土防渗墙的土石坝所呈现的侵润线以及降低,渗透量大大减少;防渗墙本身就具备了优秀的防渗效果,从而保证了下游的坝坡稳定性,保证了下游设施的安全。
In view of the fact that there is not much difference in the permeability coefficient between the sloping wall and the gravel material of a slipping slab wall dam at a certain risk point so that the invasion line of the dam body is too high and the instability of the downstream dam slope does not meet the requirements of the specification Standard, the defensive measures of clay cutoff walls should be adopted to analyze the data presented after the seepage prevention wall of the reservoir earth-rock dam is set up, and the stability of the downstream dam is analyzed by the method of balance. It can be seen from the analysis results that the invasion line and the infiltration rate of the earth-rock dam with clay cutoff wall are greatly reduced, and the cut-off wall itself has excellent seepage prevention effect so as to ensure the stability of the downstream dam slope Sex, to ensure the safety of downstream facilities.