| 岩溶地区桩基承载性能试验研究 |
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| 引用本文： | 金书滨,黄生根,常仲昆. 岩溶地区桩基承载性能试验研究[J]. 中国岩溶, 2005, 24(2): 147-151. DOI: 10.3969/j.issn.1001-4810.2005.02.011 |
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| 作者姓名： | 金书滨 黄生根 常仲昆 |
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| 作者单位： | 1.贵州省公路工程总公司 2中国地质大学(武汉) 3.东南大学土木工程学院 |
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| 基金项目： | 交通部西部交通建设科技项目 |
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| 摘 要： | 结合岩溶地区两个工程实例的静载荷试验和应力测试结果,对桩的荷载传递特性进行了对比分析,桩端岩溶对桩承载特性的影响,不仅表现为对桩端阻力的影响,对桩侧摩阻力也会产生影响。应用有限元方法分析了桩端岩土对桩承载力的影响。计算结果表明,桩端岩土的变形模量对承载力影响很大;随着变形模量增大,承载力将大幅提高。
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| 关 键 词： | 岩溶 承载力 摩阻力 端阻力 有限元分析 |
| 文章编号： | 1001-4810(2005)02-0147-05 |
TEST FOR BEARING BEHAVIOR OF PILE IN KARST AREA |
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| JIN Shu-bin,HUANG Sheng-gen and CHANG Zhong-kun. TEST FOR BEARING BEHAVIOR OF PILE IN KARST AREA[J]. Carsologica Sinica, 2005, 24(2): 147-151. DOI: 10.3969/j.issn.1001-4810.2005.02.011 |
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| Authors: | JIN Shu-bin HUANG Sheng-gen CHANG Zhong-kun |
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| Affiliation: | 1.Guozhou Highway Company 2.College of Engineering , China University of Geosciences 3.College of Civil Engineering , Southeast University |
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| Abstract: | Based on the results from static load test and stress test of two cases in karst area, the bearing behavior of pile is analyzed and contrasted in this paper. It proves that caves in the base of pile not only affect the base resistance, but also affect the friction of pile. The finite element method was applied to analyze the influence of rocks in the base of pile on bearing capacity of pile, according to the calculated results, the modulus of rocks affect the bearing capacity greatly, bearing capacity increases with the modulus of rocks increasing. |
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| Keywords: | Karst Bearing capacity Friction Base resistance Finite element method |
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