【摘要】 在地震荷载作用下,假定地基滑动面为Prantle滑动面。通过地震系数将静土压力计算扩大到动土压力。利用拟静力法和极限平衡分析方法,导出条形基础均质地基动承载力的近似解答。讨论了地震作用下地基动承载力系数的影响因素,给出了地基动承载力系数随内摩擦角、水平地震系数和竖向地震系数的变化规律,并与其他作者的结果进行了比较。更多还原

【Abstract】 Prantle model is adopted to simulate the behavior of the ground slope face under earthquake excitations.The computation of earth pressure is extended to dynamic cases from static cases by the help of seismic coefficient.By employing pseudo-stastic approach and the method of limit equilibrium,the approximate solution of seismic bearing capacity of strip foundation is derived.The factors affecting the seismic bearing capacity are discussed.The seismic bearing capacity depends on inner friction angle,as well as horizontal and vertical seismic coefficient.The analyzing results are compared with some published results finally.更多还原