苏家峡水库边坡蓄水响应特征研究

Study on Response Characteristics of Slope Impoundment of Sujiaxia Reservoir

随着水利建设的不断发展,大型水电站层出不穷,水库边坡稳定性问题逐渐成为人们重视的问题之一。由于水库边坡具有特殊的边界条件与变形特性以及对于水的敏感度,人们很难对其稳定性与发展规律进行分析。具有西部水资源开发的重要性,选定苏家峡水库作为研究对象,对其边坡蓄水响应特征进行研究。根据苏家峡水库地理位置条件分析结果以及苏家峡水库现状分析结果,选用数据模拟计算与实地监测相结合的形式,对水-岩作用的物理、力学性质进行研究,并将其分为边坡渗透情况分析、边坡变形分析以及边坡地质结构强度分析3部分进行详细的探究。通过研究可知,在水库蓄水高度变化的过程中,边坡内部结构发生相应的变化。在今后的研究中,可据此变化规律设定相应的措施,提高水库边坡的稳定性,降低滑坡事件的发生,延长水库的使用寿命。

With the continuous development of water conservancy construction,large hydropower stations emerge in endlessly,and the stability of reservoir slope has gradually become one of the problems that people pay attention to.Because of the special boundary conditions,deformation characteristics and sensitivity to water,it is difficult to analyze the stability and development law of reservoir slope.With the importance of water resources development in Western China,Sujiaxia reservoir is selected as the research object,and its slope water storage response characteristics are studied.According to the analysis results of the geographical location of Sujiaxia reservoir and the current situation of Sujiaxia reservoir.The physical and mechanical properties of water rock interaction are studied in the form of data simulation calculation and field monitoring.It is divided into three parts:slope permeability analysis,slope deformation analysis and slope geological structure strength analysis.Through the study,we can see that the internal structure of the slope changes correspondingly in the process of reservoir impoundment height change.In the future research,the corresponding measures can be set according to this change law to improve the stability of the reservoir slope,reduce the occurrence of landslide events,and extend the service life of the reservoir.