[1]鲁 洁,杨朝旭,王铁行.压实黄土强度和变形各向异性的试验研究[J].西安建筑科技大学学报(自然科学版),2016,48(05):676-680.[doi:10.15986/j.1006-7930.2016.05.010]
　LU Jie,YANG Zhaoxu,WANG Tiehang.Experimental research on strength and deformation anisotropy of the compacted loess[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2016,48(05):676-680.[doi:10.15986/j.1006-7930.2016.05.010]
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压实黄土强度和变形各向异性的试验研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
48
期数:
2016年05期
页码:
676-680
栏目:
出版日期:
2016-10-31

文章信息/Info

Title:
Experimental research on strength and deformation anisotropy of the compacted loess
文章编号:
1006-7930(2016)05-0676-05
作者:
鲁 洁; 杨朝旭; 王铁行
(西安建筑科技大学土木工程学院,陕西 西安 710055)
Author(s):
LU Jie;  YANG Zhaoxu;  WANG Tiehang
(School of Mechanics and Civil Engineering, Xi’an Univ. of Arch. & Tech., Xi’an 710055, China)
关键词:
压实黄土; 各向异性; 真三轴试验; 强度; 变形
Keywords:
compacted loess;  anisotropy;  true triaxial tests;  strength;  deformation
分类号:
TU444
DOI:
10.15986/j.1006-7930.2016.05.010
文献标志码:
A
摘要:
为研究各向异性对压实黄土强度和变形特性的影响，分别对由垂直向和水平向切取的压实黄土试样，进行了不同围压、不同干密度和不同含水率下的真三轴剪切试验．试验结果表明：相同围压、干密度下，垂直向和水平向的应力-应变曲线有明显差异，垂直向试样的轴向应变小于水平试样．轴向应变差异随着干密度和轴向压力的增大而增大，随着含水量和围压的增大而减小；侧向应变差异随着干密度和轴向压力的增大而增大，随着围压的增大而减小．初始变形模量Ei在垂直方向大于水平方向，抗剪强度在垂直方向大于水平方向．
Abstract:
In order to study the effect of anisotropy on the strength and deformation characteristics of compacted loess, the strength and deformation anisotropy of compacted loess were studied by true triaxial tests with the different confining pressure, dry density and the moisture content. The test results show that under the same stress and dry density, there are significant differences between the vertical samples and the horizontal samples, and the axial strains of vertical samples are greater than the horizontal samples. The differences of axial strain increase with the increasing of dry density and axial stress, and decrease with the increasing of confining pressures and the moisture content. The differences of lateral strain increase with the increasing of dry density and axial stress, and decrease with the increasing of confining pressures. The initial deformation modules of the vertical samples are higher than that of the horizontal samples. The shear strength of compacted loess in the vertical direction is larger than that in the horizontal direction

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备注/Memo

备注/Memo:
基金项目：国家自然科学基金项目(51078309, 51208409)；陕西省教育厅专项科研计划项目(12JK0914)
收稿日期：2015-06-08 修改稿日期：2016-10-15
作者简介：鲁洁(1980－) ，女，博士生，工程师，主要从事黄土、非饱和土工程理论和试验研究等方面的教学与科研工作．E-mail: lujie.1980@163.com
更新日期/Last Update: 2016-11-24