希尼尔水库西副坝渗流分析

Seepage analysis on west auxiliary dam of Xi'ni'er reservoir

以希尼尔水库西副坝段为例,对典型断面1+600与2+350进行渗流分析,结果表明:2断面坝基透水性较强,且在高库水位时坝轴线上游侧坝基渗压水位较高,渗透压力及渗流位势均较大;2处断面坝基水平渗透坡降均小于允许值,满足规范要求。研究结果表明2处断面坝体、坝基渗流性态基本正常,为指导水库的安全运行提供重要参考依据。

the seepage monitoring is an important content of dam safety monitoring, the results have important significance for the dam safe operation. This paper takes Xi＇ni＇er reservoir west side dam as an example,and the 1＋600 and 2＋350 as typical section, the results show that：2 typical sections permeable dam foundation and dam axis, the upstream seepage pressure level is higher in the high water level, seepage pressure and seepage potential are larger; 2 section dam foundation seepage gradient are all less than permissible level value, and meet the specification requirements. The results provide important reference to guide the safe operation of the reservoir.