等弧长法及其在土钉墙整体稳定分析中的应用  

EQUAL ARC METHOD AND ITS APPLICATION IN STABILITY ANALYSIS OF SOIL NAILING WALL

作　　者：贺为民[1] 石林珂[2] 李松岭[1] 李智毅[3] 赵常州[3] 李占强[3] 

机构地区：[1]中国地震局地球物理勘探中心,郑州450002 [2]华北水利水电学院,郑州450045 [3]中国地质大学,北京100083

出　　处：《地质与勘探》2004年第1期89-92,共4页Geology and Exploration

摘　　要：在利用条分法进行土钉墙整体稳定分析中,采用等弧长法将滑动面以上土体分成若干个等弧长的竖直土条。在此基础上,提出了土钉墙整体稳定安全系数与岩土参数、支护参数、地面附加荷载分布状态、基坑开挖深度及滑动圆圆心坐标之间的函数解析表达式。编制了应用程序并给出了工程实例。In the application of slice method in the stability analysis of soil nailing wall, the soils upon slip circle plane are divided into a number of vertical soil-slices which length of arc is equal by using equal arc method. On the basis of this, an analytic formula of function is derived and the formula shows the relationship among the safety factor of stability and geotechnical parameters, retaining and protecting parameters, distribution of ground load, the depth of foundation pit excavation and coordinates of the cent of a slide circle. The application program is compiled and an engineering example is introduced.

关 键 词：等弧长法 整体稳定安全系数 土钉墙 稳定分析 

分 类 号：TU432[建筑科学—岩土工程]