天津软土的次固结变形特性研究  

STUDY ON SECONDARY-CONSOLIDATION DEFORMATION CHARACTERISTICS OF SOFT SOIL IN TIANJIN

作　　者：雷华阳[1] 肖树芳[2] 

机构地区：[1]天津大学机械学院力学系,天津300072 [2]吉林大学建设工程学院,长春130026

出　　处：《工程地质学报》2002年第4期385-389,共5页Journal of Engineering Geology

基　　金：国家自然科学基金项目 (No .496 72 16 5 )资助

摘　　要：关于软土地基主、次固结变形分析是一项既有理论价值又有实践意义的课题。通过对天津市海积软土进行的固结试验 ,从微观的角度出发 ,结合净势能曲线解释了固结曲线上拐点的意义 ,研究了次固结系数的变化规律 ,同时建立了次固结系数与时间、固结压力和压缩指数的关系。Analysis of main and secondary consolidation behaviors of soft foundation is an important subject of theoretical value and practical significance. Large numbers of consolidation tests of marine soft soil in Tianjin were performed. From the viewpoint of microstructure, the inflexion of consolidation curve is explained in combination with potential energy curve . The variation regularity of secondary-consolidation coefficient is studied. Meanwhile, the relation of secondary-consolidation coefficient with time, consolidation pressure, and compression index are established.

关 键 词：海积软土 次固结 微观结构 天津 固结压力 压缩指数 

分 类 号：TU447[建筑科学—岩土工程]