基坑支护中土压力系数计算方法的探讨  

Study on the Computation Methods for Coefficient of Earth Pressure in Foundation Pit Bracing

作　　者：韩森[1] 郑毅[1] 何润洲 

机构地区：[1]吉林大学建设工程学院,吉林长春130026 [2]长委会重庆勘测研究院,重庆630000

出　　处：《土工基础》2005年第3期63-66,共4页Soil Engineering and Foundation

摘　　要：为讨论不同计算方法对4类粘性土的适用性,分别用3种方法计算了各类土土压力系数和土压力强度,其结果是只考虑内摩擦角的公式法对于超固结土、正常固结土和欠固结土适用性较好,对湿陷性黄土适用性稍差;只考虑c法,对4类土均不适用;尽管等值内摩擦角法对于4类土也不适用,但考虑到等值内摩擦角法计算简便,对该法的参数选取也给出了相应的建议。In order to discuss the applicability of different methods to four sorts of clay, the writer uses three methods to calculate the coefficient and intensity of earth pressure. They include the method considers angle of internal friction can be suitable for over consolidated soil, normally consolidated soil and under consolidated soil; but cun't not be applied to the collapsible loess very well. The method considers cohesion is not applicable to all four sorts of clay. Although the method of angle of equilalent internal friction is not applicable to the four sorts of soil, bat it is easy for calculate, so this paper gives corresponding advice to select parameters.

关 键 词：基坑支护 土压力系数 计算方法 

分 类 号：TU472[建筑科学—结构工程]