岩土工程学报2011，Vol.33Issue(6)：901-908,8.
高液限花岗岩残积土的物理特性和剪切特性
Physical properties and shear strength characteristics of high liquid limit granite residual soil
摘要
Abstract
High liquid limit granite residual soil (GRH) is widely distributed over South China.The physical properties and shear strength characteristics of the fine grained soil containing coarse of GRH are studied, including the natural components and soil fabric, physical features and indexes, shear peak strength and residual strength, etc.Based on a series of laboratory tests, the fine grain moisture content and its influences on liquidity index are analyzed, and the statistic relationships between coarse-grain content and field moisture as well as the physical indexes and shear strength parameters are also generalized.Through repeated direct shear tests, the major points for determining the residual strength by such test methods are discussed, and correspondingly, the typical shear curves of resistance at relatively large shear displacement are analyzed.The residual soil has combinational characteristics of both high liquid limit soil and coarse-grained soil, so it is important to understand its basic properties by studying the effects of coarse grain content.关键词
高液限土/花岗岩残积土/含粗粒细粒土/细粒含水率/残余强度Key words
high liquid limit soil/ granite residual soil/ fine grained soil containing coarse/ fine grain moisture content/ residual strength分类
建筑与水利引用本文复制引用
陈晓平,周秋娟,蔡晓英..高液限花岗岩残积土的物理特性和剪切特性[J].岩土工程学报,2011,33(6):901-908,8.基金项目
国家自然科学基金项目(11072088) （11072088）
广东省水利科技创新项目(YSK2009-01) （YSK2009-01）
广东省公路研发项目(粤公院[2007]研发05号) （粤公院[2007]研发05号）
