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Upriver cofferdam impervious curtain optimal analysis of a scheduling hydroelectric project in Jinsha river
Author(s): 
Pages: 33-36,83
Year: Issue:  10
Journal: Geotechnical Investigation & Surveying

Keyword:  防渗帷幕 敏感性分析 渗流数值计算;
Abstract: 对金沙江某拟建水电站上游河床的地质条件进行了详细分析,并根据上游围堰部位河床的地质条件与防渗作用的特殊性,建立了坝址三维有限元计算模型。利用三维渗流有限元计算方法,对上游围堰防渗帷幕深度进行了优化设计;深入分析了围堰的溢出点高程以及坝基深基坑渗流量随帷幕深度的变化曲线,并确定其最佳深度。该方法为其他水利工程的防渗优化设计提供了依据。
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