长江科学院院报2017，Vol.34Issue(8)：120-124,5.DOI:10.11988/ckyyb.20160498
泥岩耐崩解性和颗粒粒径相关性的试验研究
Correlation Between Disintegration Resistance and Particle Size of Mudstone
摘要
Abstract
Disintegration of mudstone is important in geotechnical engineering of southwest China.By indoor disintegration resistance test,disintegration features of mudstone are described in detail from three aspects,including morphological changes of disintegration products,disintegration resistance index and particle size analysis.On the basis of disintegration resistance index,disintegration intensity is divided into three levels:strong disintegration,middle disintegration and weak disintegration,and the disintegration mechanism is also classified into three types:swell disintegration after absorbing water,disintegration under wedging pressure and disintegration under mixed factors.Results show that as standard cycle times of disintegration inerease,disintegration resistance index of mudstone decreases in negative exponential distribution.Furthermore,strong disintegration mudstone belongs to the mechanism of swell disintegration after absorbing water,weak disintegration mudstone and middle disintegration mudstone belong to that of disintegration under wedging pressure and disintegration under mixed factors,respectively.Finally,disintegration intensity is obviously relevant to the particle size and disintegration mechanism of disintegration product.Particle size of strong or weak disintegration product has a polarization trend,yet that of middle disintegration product is mainly middle-size.关键词
泥岩/耐崩解性/耐崩解指数/崩解机制/颗粒分析Key words
mudstone/disintegration resistance/disintegration resistance index/disintegration mechanism/particle size analysis分类
建筑与水利引用本文复制引用
王浪,邓辉,邓通海,朱俊杰..泥岩耐崩解性和颗粒粒径相关性的试验研究[J].长江科学院院报,2017,34(8):120-124,5.基金项目
国家自然科学基金项目(41272332) （41272332）
