煤田地质与勘探Issue(5)：77-80,99,5.DOI:10.3969/j.issn.1001-1986.2014.05.015
含水量对晋西黄土抗剪强度影响的试验
Experiment study on relationship between water content and shear strength of loess in west Shanxi Province
摘要
Abstract
Based on the direct-shear tests and unconsolidated-undrained triaxial tests, the authors study the relationship between shear strength and water content of loess in West Shanxi Province. The experimental results show that the value of shear strength decreases as the water content increases in direct shear test, when water content is smaller than about 12%, the value of cohesion decreases quickly as water content increases. And with water content between about 12% and 23%, it decreases slowly as the water content increases. When the water content is lager than about 23%, it decreases quickly again. The value of internal friction angle has no obvious change as water content increases. The value of internal friction angle ranges from 14° to 32°. In triaxial compression test, shear strength parameter “c” decreases when the water content increases. With the water content less than 12%, the decreasing tendency is steep, and it is slow as the water content is larger than about 12%. With the water content increasing, internal friction angle decreases linearly and has a good correlation.关键词
黄土/含水量/抗剪强度/试验Key words
loess/water content/shear strength/test分类
天文与地球科学引用本文复制引用
曹晓毅,李萍..含水量对晋西黄土抗剪强度影响的试验[J].煤田地质与勘探,2014,(5):77-80,99,5.基金项目
国家自然科学基金项目(40772181) （40772181）
