| K0固结软黏土的临界不排水强度研究 |
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| 引用本文： | 王秋生.K0固结软黏土的临界不排水强度研究[J].岩土力学,2008,29(12):3179-3185. |
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| 作者姓名： | 王秋生 |
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| 作者单位： | 1. 浙江大学 岩土工程研究所，杭州 310027；2. 中国水利水电科学研究院 岩土工程研究所，北京 100044 |
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| 摘 要： | 临界状态土力学中孔隙比-平均有效压力 坐标下 压缩线和临界状态线可以简化为平行的直线，倾斜的椭圆屈服面是能够考虑土体各向异性的数学表达最简单的屈服面形式。结合临界状态土力学理论和倾斜的椭圆屈服面方程，给出了轴对称和平面应变情况下 固结软黏土的临界不排水强度比的解析式，通过一些试验数据对这些解析式进行了验证，最后给出了便于工程应用的临界不排水强度比关于有效内摩擦角的简易表达式。
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| 关 键 词： | 临界状态 不排水强度 各向异性 软黏土 塑性 |
| 收稿时间： | 2007-05-28 |
Research on critical undrained strength of K_0 consolidated soft clays |
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| WANG Qiu-sheng.Research on critical undrained strength of K_0 consolidated soft clays[J].Rock and Soil Mechanics,2008,29(12):3179-3185. |
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| Authors: | WANG Qiu-sheng |
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| Institution: | 1. Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310027, China; 2. Department of Geotechnical Engineering, China Institute of Water Resources and Hydropower Research, Beijing 100044, China |
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| Abstract: | K0 ompression line and critical state line can be simplified as parallel straight lines in e-lgp' space within the framework of critical state soil mechanics. Inclined ellipsoid is the simplest yield surface shape of the model that can take account of anisotropy. Combined with critical state soil mechanics, formulas of undrained strength under K0 consolidation have been proposed; these formulas can be used in triaxial stress conditions and plane strain conditions. Based on a large number of experimental dat... |
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| Keywords: | critical state undrained strength anisotropy soft clay plasticity |
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