龙湾水库土坝渗流及稳定性分析

Analysis on Seepage and Stability of Earth Dam in Longwan Reservoir

为了解土石坝渗流情况及采取何种防渗措施,本文以辽宁省黑山县龙湾水库为例,采用GEO-SLOPE软件中的SLOPE/W模块,对大坝的稳定和非稳定渗流场及正常运行期、水位骤降期的大坝稳定性,进行了数值模拟分析,其结果为该水库的安全运行提供了可靠的依据,也为类似土石坝的渗流和稳定计算提供了有益参考。

In the paper,Heishan County Longwan Reservoir in Liaoning Province is regarded as an example in order to understand the earth-rock dam seepage conditions and the adopted anti-seepage measures.SLOPE/W module in GEO-SLOPE software is adopted for numerical simulation analysis on the dam steady and unsteady seepage field as well as dam stability during normal operation period and water level drop period.The results provide reliable basis for safe operation of the reservoir,which also provide beneficial reference for seepage and stability calculation in similar earth-rock dams.