水位骤降条件下粘土边坡渗流特征分析

Analysis of Seepage Characteristics of Clay Slope under the Condition of Sudden Water Level Drop

水库库岸边坡的稳定性对于水库的蓄水量和当地水文环境的影响显著,文章采用GEOSTUDIO数值模拟软件中的Seep渗流计算模块,对水位骤降条件下的库岸粘土边坡工程在高低水位变化时的边坡渗流特征进行了研究。结果表明水位骤降前后水压和压力水头均随边坡体的深度增大而增大,水位变化前后的水力传导度和体积含水率均随土体水压的增大而增大,水在土体中具有良好的渗流作用。研究结果可为类似水位波动条件下的库岸边坡工程的渗流特征提供参考。

The stability of the reservoir bank slope has a significant impact on the storage capacity of the reservoir and the local hydrological environment.In this paper,Seep seepage calculation module of GEOSTUDIO numerical simulation software is used to study the seepage characteristics of reservoir bank clay slope engineering under the condition of water level plummeting.The results show that the water pressure and pressure head increase with the depth of the slope before and after the water level plummets.The hydraulic conductivity and volumetric water content increase with the water pressure before and after the water level changes.The research results can provide reference for seepage characteristics of reservoir bank slope engineering under similar water level fluctuation conditions.