水电水利工程施工中进水口岩质边坡稳定性监测分析研究  

Stability Monitoring Analysis Inlet Rock Slope In Hydropower and Water Conservancy Construction

作　　者：余明东[1] 

机构地区：[1]西昌学院工程技术学院,四川西昌615013

出　　处：《科技通报》2016年第11期84-88,共5页Bulletin of Science and Technology

基　　金：四川省教育厅科研基金资助项目;项目编号:13ZB0169;四川省教育厅科研项目;项目编号:14CZ0022

摘　　要：针对水电水利工程施工中进水口岩质边坡一直存在稳定性差的问题。提出利用极限平衡法对岩质边坡进行安全设计,建立有限元模型对设计的边坡稳定性进行分析。首先,运用极限平衡法中的普遍极限平衡法计算岩体面局部稳定性,在受到外力作用情况下,求解出失稳状态值及临界滑动状态值,设计出安全的力平衡参数;然后,利用有限元模型数值模拟并计算施工开挖过程及运行期的岩体应力分布和变形规律,得出进水口边坡达到安全状态后的稳定系数。仿真实验证明,利用极限平衡法对水电站进水口岩体边坡进行安全设计,通过有限元模型对影响边坡稳定性进行分析,使边坡的安全性达到了平衡状态,为整个水利工程建筑提供了数据支持。According to the construction of hydropower and water conservancy project in the water inlet slope has been the problem of poor stability. The safety design of rock slope is put forward by using the limit equilibrium method, and the finite element model is established to analyze the stability of the slope.Firstly, using the general limit equilibrium method of limit equilibrium method in rock decent local stability calculation, is an external force acting on the case, to solve the unstable state value and critical sliding state value design security force balance parameters; then, using finite element numerical model simulation and calculation of excavation process and operation period of rock stress distribution and deformation law, draw the intake slope safety state is reached after the stability coefficient. Simulation results show that using limit equilibrium method of hydropower station water inlet rock slope safety design, through the finite element model of the influence the slope stability analysis of, the slope safety to the state of equilibrium, provides the data support for the construction of water conservancy project.

关 键 词：水利工程 岩质边坡 极限平衡法 有限元模型 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]