| 未冻土和高温冻土中桩基承载性能试验研究 |
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| 引用本文： | 吕晓亮,周国庆,别小勇.未冻土和高温冻土中桩基承载性能试验研究[J].岩土工程技术,2007,21(3):160-162,F0003. |
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| 作者姓名： | 吕晓亮 周国庆 别小勇 |
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| 作者单位： | 1. 中国矿业大学建筑工程学院,江苏徐州,221008
2. 无锡市建筑设计研究院,江苏无锡,214001 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 以青藏铁路清水河特大桥旱桥桩基为原型,针对围土未冻结、均匀高温冻土中的桩基稳定问题,进行了室内物理模拟试验。研究了未冻土和高温冻土两种条件下桩基承载力的特性,试验得到了高温冻土中的桩基承载力是未冻土中11.6倍的结论,为青藏铁路工程的长期安全稳定评价与预防措施的制定提供了一定的参考依据。
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| 关 键 词： | 未冻土 高温冻土 桩基 承载力 |
| 文章编号： | 1007-2993(2007)03-0160-04 |
| 修稿时间： | 2006年12月28 |
Experimental Investigation of the Bearing Capacity of Piles in Unfrozen Soil and High-Temperature Permafrost |
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| Lv Xiaoliang,Zhou Guoqing,Bie Xiaoyong.Experimental Investigation of the Bearing Capacity of Piles in Unfrozen Soil and High-Temperature Permafrost[J].Geotechnical Engineering Technique,2007,21(3):160-162,F0003. |
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| Authors: | Lv Xiaoliang Zhou Guoqing Bie Xiaoyong |
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| Abstract: | Taking the bridge pile foundation of Qingshui River as a prototype,the stability of piles in unfrozen soil and high-temperature permafrost is investigated by the indoor simulation test.Based on the study of the bearing capacity of the pile foundation in unfrozen soil and high-temperature permafrost,it is found that the bearing capacity of the latter is 11.6 times that of the former.The experimental investigation provides reference to the construction of preventive measures for Qinghai-Tibet railway project. |
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| Keywords: | unfrozen soil high-temperature permafrost pile foundation bearing capacity |
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