摘要
针对山西湿陷性黄土进行固结排水控制吸力三轴试验,而且在固结和剪切两个阶段都进行吸力的控制,研究吸力对湿陷性黄土强度的影响规律。试验结果表明:土体的固结体变随围压的增大而增加,随吸力的增大反而减小;有效应力强度参数c随吸力增大而增大,而有效应力强度参数φ随吸力的增大基本上不变;吸附强度随基质吸力的增大而增大,但存在极值。
According to the tri-axial test of drainage control suction collapsible loess in Shanxi and the suction is controlled in two phases of consolidation and shear,the law of suction for the strength of collapsible loess was studied.The results show that the consolidation of soil volume increases with the increase of confined pressure,but reduces with the increase of suction; effective stress strength index c increases with the increase of suction; however,effective stress strength index φ basically keeps the same with the increase of suction force.Adsorption strength increases with the increase of matrix suction,but there is an extreme value.
出处
《重庆交通大学学报（自然科学版）》
CAS
北大核心
2013年第5期974-978,共5页
Journal of Chongqing Jiaotong University(Natural Science)
关键词
控制吸力
固结排水
吸附强度
controlled suction
consolidation drained
adsorption strength
