边坡地震稳定性完全动力分析法

拟静力法和动力有限元安全系数时程分析法在评价地震动作用下边坡的稳定性时具有一定的局限性,拟静力法在分析边坡地震稳定性时无法反映边坡的动力特性,动力有限元安全系数时程分析法将动力问题转化成静力问题,只是在一定程度上考虑了边坡的动力响应.与拟静力法和动力有限元时程分析法相比,完全动力分析法在应用强度折减法的基础上考虑了边坡...

Fully Dynamic Analysis Method for Seismic Stability of Slope

There are some limitations in evaluating the seismic stability of a slope by pseudo-static method and dynamic finite element time history analysis method for safety coefficients.The pseudo-static method can not reflect the dynamic characteristics of the slope in analyzing the seismic stability of slope.Meanwhile,the dynamic finite element time history analysis method for safety coefficients transforms a dynamic problem into a static problem,but it considers the dynamic response of the slope to a certain degree.Compared with the pseudo-static method and dynamic finite element time history analysis method for safety coefficients,complete dynamic analysis method considers the tension-shear failure on the basis of using strength reduction method,which can fully reflect the dynamic properties of rock and soil.The feasibility of the complete dynamic analysis method in evaluating the seismic stability of the slope is proved.And it provides a more effective way for the calculation of safety coefficients of the slope under seismic effect.