| 恒定主应力偏转角下黏土不排水剪切特性分析 |
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| 引用本文： | 姚兆明,姜自华,王春萌,陈军浩.恒定主应力偏转角下黏土不排水剪切特性分析[J].力学与实践,2016,38(1):56-62. |
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| 作者姓名： | 姚兆明 姜自华 王春萌 陈军浩 |
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| 作者单位： | 1. 安徽理工大学土木建筑学院, 安徽淮南 232001;
2. 福建工程学院土木工程学院, 福州 350118 |
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| 基金项目： | 安徽省自然科学基金，安徽高等学校自然科学基金重点项目，国家博士后基金，住房和城乡建设部项目，安徽省住房和城乡建设厅项目 |
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| 摘 要： | 天然土的结构性、各向异性对其强度有影响.进行固结压力100kPa、主应力轴恒定偏转角为0°,15°,30°,45°,60°的恒定主应力轴偏转角的固结不排水剪切试验,分析了不同恒定主应力轴偏转角对饱和软黏土固结不排水剪切强度影响;推导了总应力控制恒定主应力轴偏转角剪切试验总应力路径,编制了总应力控制剪切三维点积分程序,对比恒定主应力轴偏转角饱和软黏土固结不排水剪切强度计算值与试验结果,表明程序能很好地反应各向异性对土剪切强度影响.
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| 关 键 词： | 恒定主应力轴 不排水剪切强度 点积分 |
| 收稿时间： | 2015-07-02 |
CHARACTERISTICS OF CLAY SUBJECTED TO UNDRAINED SHEAR WITH CONSIDERATION OF INFLUENCE OF DEFLECTION ANGLE OF PRINCIPAL STRESS AXIS |
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| Yao Zhaoming,Jiang Zihua,Wang Chunmeng,CHEN Junhao.CHARACTERISTICS OF CLAY SUBJECTED TO UNDRAINED SHEAR WITH CONSIDERATION OF INFLUENCE OF DEFLECTION ANGLE OF PRINCIPAL STRESS AXIS[J].Mechanics and Engineering,2016,38(1):56-62. |
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| Authors: | Yao Zhaoming Jiang Zihua Wang Chunmeng CHEN Junhao |
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| Affiliation: | 1. School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, Anhui, China;
2. College of Civil Engineering, Fujian University of Technology, Fuzhou 350118, China |
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| Abstract: | The strength of a natural clay is affected by its structure and anisotropy. The consolidated-undrained shear test with a constant principal stress axis deflection angle is conducted, where the consolidation pressure is 100 kPa and the constant deflection angle of the principal stress axis is 0°, 15°, 30°, 45° and 60°. And the influences of different constant principal stress axis deflection angles on the consolidated-undrained shear strength and the cumulative pore pressure of the saturated soft clay are analyzed. The total stress path of the total stress-controlled constant principal stress axis deflection angle shear test is derived. The integration program of the total stress-controlled shear three-dimensional point is developed. By comparing the calculated and test results of the shear strength at the constant principal stress axis deflection angle of the saturated soft clay under consolidated-undrained conditions, it is shown that the influence of the anisotropy on the shear strength of the soil is well revealed. |
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| Keywords: | constant deflection angle of principal stress axis undrained shear strength point integration |
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