| 等效凝聚力研究 |
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| 引用本文： | 刘远明,夏才初.等效凝聚力研究[J].岩土力学,2006,27(Z1):80-84. |
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| 作者姓名： | 刘远明 夏才初 |
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| 作者单位： | 1.同济大学 岩土工程重点实验室/土木工程学院地下建筑与工程系，上海 200092；2.贵州大学 土木建筑学院，贵阳 550003 |
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| 基金项目： | 国家自然科学基金项目（No.40472142，No.50579088）。 |
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| 摘 要： | 在复杂节理的表面形貌可以理想化为三角形形貌的基础上，研究了齿形形貌节理的剪切强度机理。推导了考虑起伏度和粗糙度的抗剪强度公式，建立了等效凝聚力与节理面基本凝聚力的关系，提出了等效系数的概念，详细地研究了等效系数的变化规律。并讨论了该抗剪强度公式在不同法向压力作用下的表现形式，得出了相关结论。
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| 关 键 词： | 应用 节理 等效摩擦角 等效凝聚力 等效系数 |
| 收稿时间： | 2006-05-10 |
Research on equivalent cohesion |
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| LIU Yuan-ming,XIA Cai-chu.Research on equivalent cohesion[J].Rock and Soil Mechanics,2006,27(Z1):80-84. |
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| Authors: | LIU Yuan-ming XIA Cai-chu |
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| Institution: | 1. Key Laboratory of Geotechnical Engineering, Department of Geotechnical Engineering, School of Civil Engineering,
Tongji University, Shanghai 200092, China; 2. School of Civil Engineering and Architecture, Guizhou University, Guiyang 550003, China |
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| Abstract: | On the base which the roughness profile is model as a series of irregular shaped, triangular asperities, the shear failure mechanism of tooth-shaped joints was studied. The shear strength equation was derived, in which the surface profile of joints were considered.The relationship between equivalent cohesion and joints cohesion was established. The equivalent coefficient was proposed and the rule of the coefficient was studied. By discussing the equation under low, medium, high normal stress, some conclusions were drawn. |
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| Keywords: | application joints equivalent fiction equivalent cohesion equivalent coefficient |
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