| 岩溶及采空区桥梁桩基桩端岩层安全厚度研究 |
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| 引用本文： | 赵明华,曹文贵,何鹏祥,杨明辉.岩溶及采空区桥梁桩基桩端岩层安全厚度研究[J].岩土力学,2004,25(1):64-68. |
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| 作者姓名： | 赵明华 曹文贵 何鹏祥 杨明辉 |
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| 作者单位： | 1.湖南大学 岩土工程研究所，湖南 长沙 410082； 2.岳阳市公路桥梁基建总公司，湖南 岳阳 421000 |
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| 摘 要： | 通过对桩端岩层变形特性及破坏机理的深入分析，针对岩溶及采空区桥梁桩基桩端持力岩层安全厚度的确定进行了较全面的探讨，提出了一系列经济合理、安全可靠、且便于工程应用的计算公式，并对公式的使用范围、注意事项、影响因素以及其合理安全系数的选取等进行了讨论。
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| 关 键 词： | 岩溶 破坏机理 桩基础 安全厚度 |
| 文章编号： | 1000-7598-(2004)01-0064-05 |
| 收稿时间： | 2002-10-08 |
| 修稿时间： | 2002年10月8日 |
Study on safe thickness of rock mass at end of bridge foundation's pilein karst and worked-out mine area |
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| ZHAO Ming-hua,CAO Wen-gui,HE Peng-xiang,YANG Ming-hui.Study on safe thickness of rock mass at end of bridge foundation''''s pilein karst and worked-out mine area[J].Rock and Soil Mechanics,2004,25(1):64-68. |
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| Authors: | ZHAO Ming-hua CAO Wen-gui HE Peng-xiang YANG Ming-hui |
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| Institution: | 1. Geotechnical Engineering Institute, Hunan University, Changsha 410082, China; 2. Yueyang highway & Bridge Engineering Corporation, Yueyang 421000, China |
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| Abstract: | Aiming at the safe thickness of the bridge pile end's support rock mass in karst and mining region, the determination method had been comprehensively probed by a thorough analysis of the distortion characteristics and the destroyed mechanism of rock mass at the end of the bridge pile. A series of economic, reasonable and safety formulas have been proposed; and they are easy to apply in engineering. Finally, the problems such as the formula's using range, notices, influencing factor and the reasonable selection of the safety factor have been discussed. |
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| Keywords: | karst destroyed mechanism pile foundation safety thickness |
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