西华大学学报（自然科学版）Issue(5)：87-91,103,6.DOI:10.3969/j.issn.1673-159X.2013.05.022
基于非饱和渗流理论的土石坝渗流分析
Numerical Simulation of Earth-rock Fill Dams Seepage Field Considering the Effect of Unsaturated Soils
摘要
Abstract
At pres-ent, the effect of drainage system on saturated-unsaturated seepage is little investigated under the condition of unsaturated soil in a dam .In present study , the aim is to investigate the change of seepage field in earth-rock fill dam with the collec-tion gallery on the basis of saturate-unsaturated theory .The results showed that the discharge of seepage per unit width and phreatic line increased owing to the effect of unsaturated soil .The saturate-unsaturated theory which was used to analyze seepage field in earth-rock fill dam was more reasonable than that of saturated theory .It made up even for the harshness of saturated seepage theory and enriched its achievements .Moreover , the results indicated that the collection gallery increased seepage gradient and could lead to seepage failure in some local region .However , the application of collection gallery reduced phreatic line in a dam and downstream riverbed of the dam.It decreased submerge areas in the downstream of the dam and could help to improve the anti -slide stability and safe operation of the dam.关键词
渗流分析/非饱和渗流理论/土石坝/集水廊道Key words
seepage analysis/saturate-unsaturated theory/earth-rock fill dam/collection gallery分类
建筑与水利引用本文复制引用
刘晓庆,施浩然..基于非饱和渗流理论的土石坝渗流分析[J].西华大学学报（自然科学版）,2013,(5):87-91,103,6.基金项目
西华大学校重点科研启动基金（Z1120412）；西华大学流体及动力机械省部共建教育部重点实验室学术成果培育项目（SBZDDY-11-10）。 （）
