| 冻土断裂力学在桩基冻拔稳定计算中的应用 |
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| 引用本文： | 李洪升.冻土断裂力学在桩基冻拔稳定计算中的应用[J].冰川冻土,1998,20(2):112-115. |
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| 作者姓名： | 李洪升 |
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| 作者单位： | 大连理工大学工程力学系，中国科学院兰州冰川冻土研究所冻土工程国家重点实验室 |
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| 摘 要： | 对桩基冻拔的冻土工程问题进行了断裂力学分析，并给出简化模。在此基础上讨论了断裂判据以及应力强度因子的计算表达式。
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| 关 键 词： | 冻土 断裂力学 应力强度因子 桩基冻拔 稳定计算 |
Application of the Fracture Mechanics of Frozen Soil to the Calcuation of Stability of Pile Foundation Uplift |
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| LI Hong-Sheng,LIU Zeng-Li,ZHU Yuan-lin.Application of the Fracture Mechanics of Frozen Soil to the Calcuation of Stability of Pile Foundation Uplift[J].Journal of Glaciology and Geocryology,1998,20(2):112-115. |
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| Authors: | LI Hong-Sheng LIU Zeng-Li ZHU Yuan-lin |
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| Institution: | LI Hong-Sheng 1 LIU Zeng-Li 1 ZHU Yuan-lin 2 |
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| Abstract: | A frozen soil engineering problem of pile foundation uplift, is analyzed using fracture mechanics method, and a simplified model for calculation the stability of pile foundation uplift is presented. Base on it, fracture creteria are discussed, and the expression of stress intensity factor is suggested. At last, application of the fracture mechanics method to actual frozen soil engineering is illustrated in detail. The fracture mechanics method of frozen soil is compared with conventional method in the illustration. |
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| Keywords: | fracture mechanics of frozen soil stress intensity factor fracture creteria pile foundation uplift |
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