摘要
为了探究冰碛体在采用相似级配法和等量替代法处理超粒径试样后的力学性质,同时分析不同含水率对其力学性质的影响,通过大型三轴剪切仪和携带式岩土力学性质多功能试验仪对处理后的原试样进行了天然含水率、5%含水率、7%含水率、饱和含水率下的室内试验。试验结果表明:采用相似级配法处理后的试样在同等条件下较采用等量替代法处理后的试样黏聚力偏高、内摩擦角偏小;同时黏聚力随着含水率的增加而降低,内摩擦角随着含水率的增加先增大后减小,且有明显的峰值现象。
In order to explore the moraine body in dealing with the mechanical properties of super-particle samples graded after a similar law and equivalent alternative methods, and analyze the effects of different water content on mechanical properties, standard by large triaxial shear apparatus and portable rock, soil mechanics nature muhifunction tester for the original samples were processed natural moisture, laboratory test the moisture content of 5%, 7% moisture content and moisture content under saturation. The results show that the use of the sample after treatment with a similar level in the sample under the same conditions than the use of high cohesion after the same amount of substi- tution treatment, low internal friction angle; and cohesion with the moisture content increase while reducing internal friction angle with in- creasing moisture content then decreases, and there is significant peak phenomenon.
作者
张振
王敬勇
吉锋
魏旭博
张湉
ZHANG Zhen WANG Jmgyong JI Feng WEI Xubo ZHANG Tian(State Key Laborato17 of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China Huadong Engineering Co., Ltd., Power China, Hangzhou 310014, China)
出处
《人民黄河》
CAS
北大核心
2017年第1期106-109,共4页
Yellow River
基金
成都理工大学地质灾害防治与地质环境保护国家重点实验室自由探索课题(SKLGP2011Z009)
关键词
冰碛体
粗粒含量
缩尺效应
抗剪强度
含水率
moraine
coarse fraction
scale effect
shear strength
moisture content
