摘要
为研究不同含气量含气土的力学特性,通过沸石的多孔介质导入技术制作重塑细粒含气土,经过一系列不同有效围压的三轴固结不排水剪切试验,从应力应变曲线、土体参考割线模量和破坏比等方面,研究了不同有效围压与含气量对细粒含气土抗剪强度的影响。试验结果表明:随着土体含气量增加,土体的剪切模量和抗剪强度均有不同程度地降低;低围压下含气量对土体的剪切模量影响较小,高围压下含气量对土体的剪切模量影响显著;含气量对土体破坏比无明显影响。
To study the mechanical properties of soil with different air contents,fine grained soil is restored by import techniques such as zeolite porous media.A series of consolidation undrained triaxial tests with different effective confining pressures are carried out to study the effect of gas content on the shear strength of fine-grained gassy soil in terms of the stress-strain relationship,the reference secant modulus and the failure ratio.It is found that the shear modulus and shear strength of soil decrease with the increase of gas content,and the effect of gas content on the shear modulus of soil is small at low confining pressures but significant at high confining pressures.However,the gas content has little effect on the failure ratio of soil.
作者
王其炎
周翔
徐学尔
郑何
蒋耀晨
WANG Qiyan;ZHOU Xiang;XU Xueer;ZHENG He;JIANG Yaochen(Zhejiang Communications Construction Group Co.,Ltd.,Hangzhou 310051,China;College of Civil Engineering,Zhejiang University of Technology,Hangzhou 310023,China)
出处
《浙江工业大学学报》
CAS
北大核心
2023年第3期243-247,297,共6页
Journal of Zhejiang University of Technology
关键词
含气土
细粒土
抗剪强度
剪切模量
三轴试验
gas bearing soil
fine grained soil
shear strength
shear modulus
triaxial test
