【摘要】 为研究地震作用下的边坡稳定性问题,基于极限平衡法,修正滑面正应力,得出地震力作用下的严格极限平衡法,对任意滑动边坡进行受力分析,进而分析地震力作用下的边坡稳定性。以牙根水电站2号拉裂体右岸边坡为研究对象,采用与有限元法相结合的严格极限平衡法和传统极限平衡法分别对均质边坡与非均质边坡安全系数进行求解。结果表明,严格极限平衡法与传统极限平衡法计算结果误差均在容许范围内,验证了严格极限平衡法的合理性,为工程实际应用提供一种新的方法指导。更多还原

【Abstract】 In order to study the stability of slope under seismic action,based on the limit equilibrium method,the normal stress of sliding surface is corrected,and the strict limit equilibrium method under seismic force is obtained. In this paper,taking the right bank slope of No. 2 tensile crack of donggen hydropower station as the research object,strict limit equilibrium method combined with finite element method and traditional limit equilibrium method are used to solve the safety coefficient of homogeneous slope and non-homogeneous slope respectively. The results show that the error of the calculation results of the strict limit balance method and the traditional limit balance method are all within the tolerance range,which proves the rationality of the strict limit balance method and provides a new method guidance for the practical application of engineering.更多还原