软土沉降分析中的某些问题  

Settlement Analysis of Embankment on Soft Clay

作　　者：周镜[1] 

机构地区：[1]铁道部科学研究院

出　　处：《中国铁道科学》1999年第2期17-29,共13页China Railway Science

摘　　要：文中首先指出常规一维固结理论分析软土沉降时， 不考虑偏应力对沉降的影响， 而对软土上路基工程， 偏应力的影响不能忽视， 并论证了偏应力的作用， 探讨影响偏应力的因素； 另外用工程实例说明软土沉降计算的困难和存在问题；In this paper,it has been pointed out that in the settlement analysis of embankment on soft clay,the effect of shear stress should not be neglected.But this effect is not considered in the conventional consolidation analysis.The effect of shear stress deformation through the whole process of settlement and the factors influencing the shear stress have been discussed.Some engineering projects have been used to illustrate the difficultiesmet in estimating settlements and settlement rates.The general problems in predicting settlement and settlement rate have been discussed.Finally,some suggestions are given.

关 键 词：固结理论 软土沉降 偏应力 路基 

分 类 号：U213.14[交通运输工程—道路与铁道工程] U416.16