广西桂林红粘土压缩特性的试验研究  

Experimental Study on Compression Characteristics of Red Clay in Guilin,Guangxi

作　　者：周珊珊 ZHOU Shanshan(Northern Engineering and Technology Corporation,MCC,Dalian 116600,China)

机构地区：[1]中冶北方工程技术有限公司,辽宁大连116600

出　　处：《矿业工程》2018年第3期64-66,共3页Mining Engineering

摘　　要：针对广西桂林地区的红粘土,采用压力板仪和高压固结仪进行不同基质吸力下的固结压缩以及回弹试验。从试验结果可知,随着基质吸力的增大,该红粘土的压缩指数/回弹指数几乎保持为常数,但前期固结压力随着基质吸力的增大呈现出增大的趋势,并且当采用有效应力来表示时,这种趋势更明显。For the red clay in Guilin,Guangxi,solidification compression and rebound test are carried out under different matric suction by pressure plate and high-pressure consolidation apparatus.From the tests it can be seen that with the increase of matric suction,the compression index/rebound index of this red clay almost keep the constant.However,with the increase of matric suction,the preconsolidation pressure in early stage shows a rising trend.Moreover,when using the effective stress for expression,this trend is more obvious.

关 键 词：红粘土 非饱和 压缩指数 基质吸力 前期固结压力 

分 类 号：TU41[建筑科学—岩土工程]