玄武岩残积土的崩解性试验  

Disintegration Test on the Basalt Residual Soil

作　　者：柳治国[1] 吕晓舜[1] 谭捍华[1] 

机构地区：[1]贵州省交通规划勘察设计研究院股份有限公司,贵阳550001

出　　处：《贵州大学学报（自然科学版）》2013年第5期121-125,共5页Journal of Guizhou University:Natural Sciences

基　　金：西部交通建设科技项目(2009 318 802 074)资助

摘　　要：论述了残积土的崩解性,并对两种不同风化程度下的玄武岩残积土进行了室内崩解试验,试验在原状土、烘干、风干三种条件下进行。试验结果表明,原状土样崩解速度较慢,风干土样崩解速度最快,烘干1 h土样次之。同时,土样本身的矿物成分、颗粒大小、含水率等是影响土样崩解的重要因素,棕红色土样由于含有游离态氧化铁等因素,崩解速率大于黄褐色土样。Disintegration of residual soil was discussed, and the indoor disintegration test was conducted on the two kinds of basalt residual soil under different weathering degree, on the conditions of the undisturbed soil, drying and drying. The test results show that the undisturbed soil samples collapse slower, air-dried soil samples fastest, drying soil samples after 1 h taking the second. At the same time, the mineral composition, the particle size and the moisture content of soil samples are the important factors that affect soil disintegration. For palm red soil sample, due to factors such as containing free ferric oxide, its disintegration rate is greater than the yellowbrown soil samples.

关 键 词：残积土 崩解性 试验 

分 类 号：U416[交通运输工程—道路与铁道工程]