考虑封闭作用和应力扩散的软土地基临塑荷载  

Critical edge pressure of soft clay foundation considering closure effect and stress dispersion of crust

作　　者：问延煦[1] 周健[1] 贾敏才[1] 

机构地区：[1]同济大学地下建筑与工程系,上海200092

出　　处：《岩土力学》2007年第8期1715-1718,共4页Rock and Soil Mechanics

摘　　要：在深入分析硬壳层对下卧软土层的封闭作用和扩散作用的基础上,推导了能考虑这两种作用的软土地基临塑荷载计算公式。同时通过对封闭作用产生机理的分析,指出传统的弹性力学分析方法无法考虑封闭作用对软土地基临塑荷载的影响。Based on deeply analyzing the closure effect and stress dispersion of crust, a critical edge pressure formula of soft clay foundation considering the two effects is derived. At the same time, through the analysis about the generation of the closure effect, it is pointed out that the traditional method in elastic mechanics couldn＇t consider the closure effect of the curst.

关 键 词：硬壳层 封闭作用 应力扩散 临塑荷载 

分 类 号：P618.13[天文地球—矿床学]