深厚覆盖层渗透系数三种测定方法的对比分析——以新疆下坂地水库坝址覆盖层为例

Contrast and analyses of three ways used to determine the coefficient of permeability of a thick and deep cover——Exemplified by a thick and deep cover in the Xiabandi reservoir dam site in Xinjiang

深厚覆盖层结构复杂,其渗透系数的求取是目前勘察工作中一个难以解决的问题。本文通过3种方法的对比分析,并结合地层结构特征进行综合评价,取得了较为合理的渗透参数,为工程设计和施工提供了科学依据。

The structure of a thick and deep cover is quite complicated. So far it is still difficult to attain the coefficient of permeability of a thick and deep cover in the reconnaissance. In the paper, more rational parameters of permeability are obtained by contrasting and analyzing three ways which are used to determine and evaluate synthetically the structure features of the strata. The results will be used as a scientific basis for the design and construction of the dam.