圆弧滑动法求地基承载力(上)  

To Obtain Bearing Capacity of a Foundation by Circular Slide Method(Ⅰ)

作　　者：张孙振 

机构地区：[1]水运规划设计院

出　　处：《水运工程》1991年第10期48-55,共8页Port & Waterway Engineering

摘　　要：本文通过对圆弧滑动法、极限平衡理论解和极限承载力公式的比较论证,指出采用滑弧法时宜于选用的弧心区域、滑弧、力的计算图式以及相应的安全系数。运用文中所述的方法还可求得多层土地基的近似等价均质地基土强度。还讨论了验算直立挡土墙地基整体稳定性与验算土坡稳定性的差异。By comparison and demonstration on the circuler slide method, solution of limiting state of equilibrium and expression of ultimate bearing capacity, this paper gives the most reliable location area of circular centers and slide curves, as well as the patterns for calculating all forces , with corresponding safety factors. At the same time, by using this method indicated as above, an approximate equivalent bearing capacity of homogeneous foundation soil may be obtained for a foundation with mutiple layers of different soils.In this paper the discrepancy between the checking of mass movement stability of foundation with vertical retainig wall and the stability of a sloped ground is also discus-sed.

关 键 词：地基 承载力 圆弧滑动法 

分 类 号：TU470.1[建筑科学—结构工程]