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K0固结对土体各向异性力学性质的影响

发表时间:2020-07-01  浏览量:238  下载量:29
全部作者: 张浩,陈小羊
作者单位: 中建海峡建设发展有限公司;中国建筑第七工程局交通建筑有限公司
摘 要: 土体在重力作用下,经过长期的固结沉降,不同方向上的力学性质之间具有较大差距,即具有明显的各向异性特性。通过收集大量试验数据,分析了K0固结沉降对土体不同方向的剪切模量、摩擦角、临界状态线及屈服面四个方面的影响。结果显示,由于K0固结的作用,不同方向的剪切模量和摩擦角具有较大的差异,拉伸和压缩下得到的临界状态线不一致,同时初始屈服面存在明显的倾斜角度。
关 键 词: 土木建筑工程基础学科;各向异性;剪切模量;摩擦角;临界状态线;屈服面
Title: Effect of K0 consolidation on mechanical properties of soil anisotropy
Author: ZHANG Hao, CHEN Xiaoyang
Organization: CSCEC Strait Construction and Development Co., Ltd.; Transportation Construction of China Construction Seventh Engineering Division Corp., Ltd.
Abstract: Under the influence of gravity, after the long-term consolidation and settlement, there is a large difference between the mechanical properties in different directions, that is, the soil has obvious anisotropic characteristics. Through collecting a large number of experimental data, the effects of K0 consolidation and settlement on shear modulus, friction angle, critical state line and yield surface of soil in different directions are analyzed. The results show that the shear modulus and friction angle in different directions are quite different due to the effect of K0 consolidation. The critical state lines obtained under tension and compression are not consistent, and the initial yield surface has obvious inclination angle.
Key words: foundation subject of civil and architecture engineering; anisotropy; shear modulus; friction angle; critical state line; yield surface
发表期数: 2020年6月第2期
引用格式: 张浩,陈小羊. K0固结对土体各向异性力学性质的影响[J]. 中国科技论文在线精品论文,2020,13(2):178-187.
 
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