软粘土的结构性及其对路基沉降的影响  

The Structure of Soft Clay and Its Effect on Settlement of Foundation

作　　者：张诚厚[1] 袁文明[1] 戴济群[1] 

机构地区：[1]南京水利科学研究院土工所

出　　处：《岩土工程学报》1995年第5期25-32,共8页Chinese Journal of Geotechnical Engineering

摘　　要：沪宁高速公路昆山试验段范围内的软粘土为具有结构性的正常压密粘土，如何认识此种土类的基本特性并充分加以利用，是在软基上修筑高速公路的主要问题之一。本文以室内试验及现场试验成果讨论了结构性对土的物理力学特性的影响，对现场地基沉降、孔隙压力及水平位移的影响，以及在沉降计算中如何考虑结构性的影响。由该计算方法所得的结果与现场沉降观测结果是一致的。The Kunsan soft clay is a kind of normally consolidated clay with structure One of the most importantproblems would be how to evaluate the basic behaviour of the soil and how to utilize it The following problemswould be discribed in this paper:(1)the influence of structure on mechanical properties of soil(2 )the influenceof structure of soft clay on its settlement,pore pressure and horizontal displacement in different improvement zone.(3)the method to evaluate the influence of the structure on settlement The result calculated by this method is con-sistent with the settlement measured in the field.

关 键 词：软粘土 结构性能 路基 高速公路 沉降 

分 类 号：U412.221[交通运输工程—道路与铁道工程]