成都理工大学学报（自然科学版）2011，Vol.38Issue(4)：443-449,7.
金沙江某水电站坝基覆盖层的成因及其渗透稳定性
Study on the characters and seepage stability of the cover on the dam foundation at a hydropower station along Jinsha River, China
赵华 1王运生1
作者信息
- 1. 成都理工大学环境与土木工程学院,成都610059
- 折叠
摘要
Abstract
Based on the study of the composition and distribution of the deep-sick cover on the river bed at a hydropower station in Jinsha River of China, this paper discusses the genetic mechanism of the cover on the dam foundation. Using a variety of theoretical formulas, the paper identifies the seepage deformation form, calculates anti-permeability strength parameters, and further comprehensively evaluate the permeability and stability of the cover. The results show that the cover on riverbed is formed by the action of the tectonic movements and the climate change, and be dominated by the climate factor. The cover has piping and flowing soil conditions, the permissible hydraulic gradient value is relatively high, and the necessary seepage prevention is needed. The conclusion provides a theoretical basis for the construction of a hydropower station.关键词
覆盖层/渗透/成因类型/临界水力坡降Key words
cover/ seepage/ genesis type/ critical hydraulic gradient分类
建筑与水利引用本文复制引用
赵华,王运生..金沙江某水电站坝基覆盖层的成因及其渗透稳定性[J].成都理工大学学报（自然科学版）,2011,38(4):443-449,7.
