某水电站坝前堆积体稳定性研究

Research on stability of accumulation body in front of a dam

某拟建水电站大坝左岸坝肩存在一堆积体,该堆积体的稳定对拟建水电站大坝和附属水力设施的布置和安全至关重要。为此,在深入分析该堆积体基本特征以及工程地质条件的基础上,对该堆积体成因机理进行了分析,采用极限平衡法计算了堆积体整体稳定性。计算结果为分析目前堆积体的稳定状况及预测其可能造成的工程危害提供了评价基础。

An accumulation body exists at the abutment on the left bank of a dam to be built.The stability of Mangtong accumulation body is of vital importance to the dam layout and stability of a proposed hydropower station and ancillary facilities.Therefore,on the basis of in-depth research on basic characteristics and engineering condition of the accumulation body,the genesis of accumulation body is analyzed and its integral stability is calculated with limit equilibrium method.The calculation result provides an evaluation basis for the accumulation body stability and prediction of possible engineering harmfulness.