| 土的卸载抗剪强度 |
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| 引用本文： | 蔡建,周健.土的卸载抗剪强度[J].岩土工程学报,2006,28(5):606-610. |
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| 作者姓名： | 蔡建 周健 |
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| 作者单位： | 上海航道勘察设计研究院；同济大学地下建筑与工程系 上海200120；同济大学地下建筑与工程系；上海200092； |
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| 摘 要： | 从超固结土与正常固结土的应力关系开始,分析卸载对土的大小主应力的影响,得到考虑卸载影响和不考虑卸载影响2种情况下土的抗剪强度差值。从理论上推导卸载过程中某一深度固定点的土的抗剪强度变化规律即卸载强度指标,以及卸载深度一定时不同深度各点的土的抗剪强度变化规律。最后得到土的卸载抗剪强度指标的计算方法。
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| 关 键 词： | 卸载 土的抗剪强度 超固结土 正常固结土 |
| 文章编号： | 1000-4548（2006）05-0606-05 |
| 收稿时间： | 2005-01-17 |
| 修稿时间： | 2005-01-17 |
Unloading shear strength of soils |
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| CAI Jian,ZHOU Jian.Unloading shear strength of soils[J].Chinese Journal of Geotechnical Engineering,2006,28(5):606-610. |
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| Authors: | CAI Jian ZHOU Jian |
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| Affiliation: | 1.Shanghai Waterway Investigation Design and Research Institute Shanghai 200120 China 2.Department of Underground Construction Engineering Tongji University Shanghai 200092 China |
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| Abstract: | In consideration of stresses relation between over-consolidated soils and normal consolidated soils, the effect of unloading on major stresses was analyzed. Then the difference between loading and unloading shear strength was given. Evolution of shear strength of soils at different depths was also discussed, and the calculation procedure for unloading shear strength of soil was found finally. |
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| Keywords: | unloading shear strength over-consolidated soils normally consolidated soils |
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