基于强度折减法的某水利工程边坡静动力稳定性分析  

Static and Dynamic Stability Analysis of A Hydraulic Engineering Slope Based on Strength Reduction Method

作　　者：郭泽宇 许战军 张帆[1] GUO Zeyu;XU Zhanjun;ZHANG Fan(PowerChina Northwest Engineering Corporation Limited, Xi'an 710065,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司,西安710065

出　　处：《西北水电》2021年第1期28-31,共4页Northwest Hydropower

摘　　要：使用大型有限元软件ADINA建立中国某水利工程右岸边坡的二维有限元仿真模型,基于强度折减法,使用塑性区贯通判据和关键点位移突变判据对该边坡在静力及动力工况下的稳定性进行分析。结果表明:边坡在静力工况下的安全系数为2.4,在0.2g地震动作用下的安全系数为1.88,即该边坡在静力及动力工况下均具有较大的安全裕度。The large-scale finite element software ADINA is used to establish a two-dimensional finite element simulation model of the right bank slope of a water conservancy project in China.Based on the strength reduction method,the plastic zone penetration criterion and the critical point displacement mutation criterion are used to analyze the stability of the slope under static and dynamic conditions.The results show that the safety factor of the slope under static condition is 2.4,and the safety factor under the action of 0.2g ground motion is 1.88,i.e.the slope has a large safety margin under both static and dynamic conditions.

关 键 词：边坡稳定 强度折减法 关键点位移突变 塑性区贯通 

分 类 号：U417.2[交通运输工程—道路与铁道工程]