哈尔滨市磨盘山水利枢纽区渗控方案分析  

Analysis on seepage control schemes of Mopanshan hydro-project in Harbin City

作　　者：张立杰[1] 杜新强[1] 冶雪艳[1] 彭卉[1] 邓国立[1] 

机构地区：[1]吉林大学环境与资源学院

出　　处：《东北农业大学学报》2005年第3期388-392,共5页Journal of Northeast Agricultural University

基　　金：黑龙江省水利厅科技研究开发项目(HSKJ2003-01)

摘　　要：拟建的哈尔滨市磨盘山水库存在的主要问题是坝基渗透稳定性,防渗形式拟采用垂直砼防渗墙及帷幕灌浆方案,文章采用三维数值模拟计算,分析了左岸不同长度防渗对水库渗漏量及坝基渗透稳定性的影响。结果表明,渗漏量及下游渗流出口渗透比降基本随防渗长度的增大呈线性趋势减小,当防渗长度为200m(全防渗)时,渗漏量及各渗透比降均小于允许值;渗流场对渗透系数的敏感性分析也表明,全防渗情况下,天然渗透介质渗透系数取值变化对计算结果的影响相对较小。The seepage stability is the main problem of Mopanshan reservoir in Harbin City, the vertical style seepage control scheme that use concrete impermeable wall and grouting curtain was designed to use. This paper analyzed the effect of different impermeable body length at left bank to seepage quantity and seepage stability of dam foundation by three-dimensional numerical simulation. The results reflected that the seepage quantity and the outfall seepage gradients in downstream of the dam is basically linear proportional to the impermeable body length. While the impermeable body length is 200 m, the seepage quantity and various seepage gradients are all less than the tolerant values, and in this situation, there is reletive a little affection of natural seepage media hydraulic conductivity to the calculation results.

关 键 词：水利枢纽 渗控方案 三维渗流场 敏感性分析 

分 类 号：TV632.35[水利工程—水利水电工程]