路基工程Issue(1)：74-79,6.DOI:10.13379/j.issn.1003-8825.2018.01.17
灰岩-粉质黏土混合填料原位水平推剪试验研究
Horizontal Push-shear In-situ Test Study on Limestone-silty Mixture
摘要
Abstract
Rock-soil aggregate is a complex made of soil and rock (broken stone),wherein the variety and content of soil and rock are different,hence the shear failure characteristics are not the same as well.However,the study on the shear failure mechanism is not deep enough so that the strength parameter of such filler is hard to determined in the engineering.To further verify the shear failure characteristics of the soil-rock mixture,5 large-scale horizontal push-shear in-situ tests were carried out on limestone-silty clay filler.According to the result of the field tests,the horizontal thrust-displacement curve of such mixed filler was divided into 5 stages,and each shear failure surface was restored in three dimensions.关键词
土石混合料/水平推剪试验/剪切破坏面/抗剪强度参数/原位试验Key words
soil-rock mixture/horizontal push-shear test/shear failure surface/shear strength parameter/in-situ test分类
建筑与水利引用本文复制引用
罗堂,田龙强,何超亮..灰岩-粉质黏土混合填料原位水平推剪试验研究[J].路基工程,2018,(1):74-79,6.基金项目
国家自然科学基金重点项目(41630643) （41630643）
国家自然科学基金面上项目(41272305) （41272305）
中南电力设计院大型科研课题(40-1A-KY201510-G01) （40-1A-KY201510-G01）
