摘要
针对地面堆载和相邻建筑物荷载对深基坑支护结构上土压力分布会产生影响的实际问题，指出现行设计计算方法中存在的缺陷，应用半无限体地基中附加应力的弹性解，分析了在条形均布超载作用下挡土墙上附加土压力的分布规律．
In addition to earth and water pressure,the lateral pressure induced by surcharge loading is a main factor needs to be considered in the design of retaining walls.There are several methods to estimate the induced lateral pressure,but experiments performed by most of expects confirmed that it is a closer approximation to the actural pressure by assuming the soil behaves elastically.As for the strip surcharge loads,which are common around excavation sites in urban area ,the auther points out some problems existed in the method recommended by the curent Chinese textbook of soil mechanics for calculating the magnitude of the induced lateral pressure,three modes for practical use based on Boussinesq's solution is presented. A reasonable value between one to two times of the elastic solution is recommended.
出处
《武汉城市建设学院学报》
1997年第1期18-22,共5页
Journal of Wuhan Urban Construction Institute
关键词
挡土墙
超载
土压力
retaining wall
surcharge loads
lateral pressure
