用孔压静力触探和室内固结试验求取土的固结系数的对比研究  

A comparison study conslidation coefficient of soil by piegocone penetration test(CPTU) and laboratory consolidation test

作　　者：孟高头[1] 张德波[1] 刘春宇[1] 张迎春 肖锋 梁榕生 陈龙智 伍尚干 

机构地区：[1]中国地质大学,武汉430074 [2]广东省航务工程总公司,广州510230 [3]广东省冠粤路桥有限公司,广州510600

出　　处：《水文地质工程地质》2001年第1期18-20,共3页Hydrogeology & Engineering Geology

摘　　要：土的固结系数是软土地基计算与处理设计中的关键参数 ,本文根据先进的孔隙水压力静力触探技术现场测试求出的固结系数和室内固结试验所求固结系数 ,进行了大量统计对比研究 ,发现两者之间存在很好的线性相关关系 ,并论述了两种方法求取固结系数的原理及步骤 。The consolidation coefficient of soil is the key parameter for soft soil improvement calculation and design.It can be determined by both piezocone penetration test(CPTU)and lab.consolidation test.So the comparison research with both tests and methods are carried out and studied.The result have shown that the coefficient determined by two methods exists linear relationship. The principle and the methods to determine the coefficient as well as a lot of advantages of CPTU method are also presented here.

关 键 词：固结系数 孔隙水压力静力触探 超孔隙水压力消散试验 回归分析 室内试验 

分 类 号：TU411.5[建筑科学—岩土工程]