干旱地区农业研究2012，Vol.30Issue(2)：181-187,7.
深厚覆盖层上土石坝的渗流控制方案研究
Research on seepage control schemes of earth-rock dam with deep overburden layer
郭江涛 1张爱军2
作者信息
- 1. 西北农林科技大学水利与建筑工程学院,陕西杨凌712100
- 2. 杨凌职业技术学院,陕西杨凌712100
- 折叠
摘要
Abstract
As the geological conditions in west China are are complicated, deep overburden foundation often exists in the construction of earth-rock dams. Deep overburden foundation results in the leakage of reservoir and possibly endangers the safety of the dam, so the seepage control problem is particularly prominent and urgent. A water conservancy project in Tibet was taken as an example and finite element analysis method was used to conduct two-dimensional and three-dimensional calculation of infiltration line and seepage quantity and stability of 8 kinds of seepage control schemes of this project, such as"no impervious"/'upstream clay blanket", "downstream mattress drainage", "downstream clay gland", "non-impervious dam foundation", "hanging concrete anti-seepage wall", "down with curtain grouting anti-seepage concrete wall"and"impervious wall". The relationship between optimum anti-seepage scheme selection and seepage coefficient was found out, and the effect of the scheme of deep overburden layer of vertical seepage control was verified, wich may be used as a reference for similar engineering.关键词
深厚覆盖层/土石坝/渗流控制/分析Key words
deep overburden layer/ earth-rock dam/ seepage control/ analysis分类
农业科技引用本文复制引用
郭江涛,张爱军..深厚覆盖层上土石坝的渗流控制方案研究[J].干旱地区农业研究,2012,30(2):181-187,7.
