西安科技大学学报2017，Vol.37Issue(6)：860-864,5.DOI:10.13800/j.cnki.xakjdxxb.2017.0614
不同含水量下原状离石黄土的结构强度
Structural strength of the original Lishi loess under different water content
摘要
Abstract
The structural strength is the most important mechanical index of loess,which depends on the degree of confining pressure and water content.The original Lishi loess under different water content are studied by the uniaxial compression test and the conventional triaxial compression test.The result shows that the structural strength decreases in logarithmic function with the increase of water content in the former test;h is influenced obviously by water content and confining pressure in the latter test.Based on the test,relationship equation between index of strength (C,φ) of Lishi loess and water content is built by Mohr-Coulomb Theory,the cohesive force C decreases exponentially with the increase of water content,the friction coefficient tanφ decreases linearly with the increase of water content,thus it can provide some references for engineering design in the loess area.关键词
离石黄土/含水量/固压/结构强度Key words
Lishi loess/water content/confining pressure/structural strength分类
天文与地球科学引用本文复制引用
何青峰,徐志浩,郭亮,赵法锁..不同含水量下原状离石黄土的结构强度[J].西安科技大学学报,2017,37(6):860-864,5.基金项目
国家自然科学基金(41572287,41702298) （41572287,41702298）
