液压升降坝工程防渗措施浅析

Elementary Analysis on Anti-seepage Measures of the Hydraulic Lifting Dam Enigneering

城市河道设计中常有兼顾景观要求,需要通过对城市河道进行梯级拦蓄,形成生态水面。结合洛南县老君山文化旅游景区液压坝工程基本情况,工程位于全新统冲洪积堆积的河流漫滩上,岩性为砂卵石,厚度一般8.0~15.0 m,属于强透水层。通过粘土铺盖、复合土工膜、砼防渗墙、水泥砂浆帷幕的四种防渗方案比较分析,确定采用钢筋混凝土防渗墙及复核土工膜集合的方法进行防渗,以彻底解决液压坝的渗漏问题。

The urban river design often takes into account the requirements of the landscape, requires to cascade reservoir on urban rivers and is coming to be the ecological water surface. The article combined with the basic situation of the hydraulic lifting dam engineering in Laojunshan cuhural tourism scenic of Luonan Count, the project is located in the whole new alluvial accumulation of river floodplain, lithology for the sand and gravel, the thickness of the general 8.0m - 15.0m, are strong through the water. Through the comparative analysis of four kinds of anti-seepage schemes of clay cover, composite geomembrane, concrete cut-off wall and cement mortar curtain, it is determined that the anti-seepage wall and the geomembrane collection method are used to prevent the infiltration of the hydraulic dam Leakage problem.