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本文主要通过对一个案例水库坝前的基础渗压计量的观测数据,其结果表现出该水库在蓄水的初期就发生快速的淤泥堆积,坝前的垂直防渗漏效果十分明显;在坝前的三角区域淤泥堆积完毕后。淤积铺盖的对大坝的总体防渗漏效果伴随着水库的体位提高而减小、库区水位的降低而增加,并随着水坝长时间高水位运行,泥沙的淤泥负担了大坝工作的百分之五十以上,这个过程中十分有效的利用了水库坝前淤积的泥沙,从而形成一个天然的防渗层来加强大坝的防渗工作。
In this paper, the observation data of infiltration in a case of pre-dam foundation is presented. The results show that the reservoir has a rapid accumulation of sludge in the early stage of water storage. The vertical anti-seepage effect in front of the dam is very obvious. Triangular area silt accumulation is completed. The total seepage prevention effect of siltation on the dam decreases with the increase of the reservoir’s body position and the water level in the reservoir area decreases. As the dam operates at high water level for a long time, the silt of the silt burden the dam Fifty percent or more of this dam is very effective in using sediment deposited in front of the dam to form a natural seepage prevention layer to enhance dam seepage prevention.