节点文献
库水位下降时隔水底板倾斜的层状岸坡中浸润线的解析解
Analytic Solutions for Shallow Water Table in Inclined and Layered Slope under Drawdown Condition
【摘要】 库岸边坡中的地下水对其稳定性起决定作用,然而目前却没有统一的公式用来计算岸坡中的浸润线。为此,根据三峡库区广泛存在的隔水底板倾斜的层状非均质岸坡建立了基本模型,求得了稳定渗流和非稳定渗流两种情况下,库水位下降时岸坡中浸润线的解析解。同时,结合算例进行了分析,证明该方法在实际工程中具有指导意义。
【Abstract】 The ground water plays a significant role in the stability of reservoir slopes.However,there are no general formulas for the calculation of shallow water table of reservoir slopes.In this paper,the conceptual model is established based on the inclined,hetergenous,multi-layered reservoir slopes with impervious beds widespresd in the Three Gorges areas.Also,the analytic solutions to shallow water table caused by reservoir water fluctuation both under the conditions of steady seepage and unsteady seepage are derived.The ideal case of simplified Three Gorges slope model demonstrates the validation of the approaches in practical use.
【Key words】 reservoir drawdown; unsteady seepage; shallow water table; inclined impervious bed; heterogeneity;
- 【文献出处】 地质科技情报 ,Geological Science and Technology Information , 编辑部邮箱 ,2007年02期
- 【分类号】TV223
- 【被引频次】15
- 【下载频次】285