| 考虑扰动的饱和软黏土圆柱孔扩张弹塑性解 |
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| 引用本文： | 徐书平,刘祖德,凡红,刘建军.考虑扰动的饱和软黏土圆柱孔扩张弹塑性解[J].岩土力学,2007,28(7):1505-1510. |
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| 作者姓名： | 徐书平 刘祖德 凡红 刘建军 |
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| 作者单位： | 1. 武汉工业学院 土木工程系，武汉 430023；2. 武汉大学 土木建筑工程学院，武汉 430072 |
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| 摘 要： | 根据原位十字板试验扰动导致饱和软黏土不排水强度降低的事实，应用圆柱形孔扩张理论，假设饱和软黏土在塑性阶段满足Tresca屈服条件，提出了一种基于饱和软黏土灵敏度的扰动度D且是塑性区半径的对数函数。考虑在塑性区内不排水强度su是扰动度D的函数，得到了考虑扰动的圆柱形孔扩张的弹塑性解答。
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| 关 键 词： | 饱和软黏土 Tresca材料 圆柱形孔扩张理论 灵敏度 扰动度 对数函数。 |
| 文章编号： | 1000-7598-（2007）07-1505-06 |
| 收稿时间： | 2005-08-22 |
| 修稿时间： | 2005-08-22 |
Elastoplastic solution of cylindrical expansion considering disturbed saturated soft clay |
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| XU Shu-ping,LIU Zu-de,FAN Hong,LIU Jian-jun.Elastoplastic solution of cylindrical expansion considering disturbed saturated soft clay[J].Rock and Soil Mechanics,2007,28(7):1505-1510. |
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| Authors: | XU Shu-ping LIU Zu-de FAN Hong LIU Jian-jun |
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| Institution: | 1. Department of Civil Engineering, Wuhan Polytechnic University, Wuhan 430023, China ; 2. School of Civil and Architectural Engineering, Wuhan University, Wuhan 430072, China |
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| Abstract: | According to the fact of the undrained shear strength decreasing during field vane test, applying the cylindrical expansion theory, it is assumed that saturated soft clay satisfies Tresca yield criterion, and then the disturbance degree function is given on the basis of the sensibility of saturated soft clay, and the function D is logarithm function of the plastic radius. Considering the undrained shear strength Su is the function of the disturbance degree, the elastoplastic solution of the cylindrical expansion is gained. |
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| Keywords: | saturated soft clay Tresca material cylindrical cavity expansion theory sensibility disturbance degree logarithm function |
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