| 三岔河特大桥在溶洞不良地质段的桩基成孔 与溶洞处理方案探讨 |
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| 引用本文： | 陶,旭.三岔河特大桥在溶洞不良地质段的桩基成孔 与溶洞处理方案探讨[J].交通标准化,2013(21):60-62. |
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| 作者姓名： | 陶 旭 |
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| 作者单位： | 贵州桥梁建设集团有限责任公司,贵州贵阳550000 |
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| 摘 要： | 通过对贵州某山区不良地质桩基成孔工艺的介绍与比选，考虑工期与经济性，主要采用片石加粘土按一定比例回填冲击使其形成泥石护壁的施工方法，克服了因特殊地质原因造成的易塌孔、缩孔等问题，为类似地质的桩基施工提供了参考。
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| 关 键 词： | 桩基 不良地质 溶洞 钢护筒 筑壁 |
Pore-Creating of Pile Foundation and Karst Cave Treatment Scheme to Sancha River Bridge at Bad Geological Section |
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| TAO Xu.Pore-Creating of Pile Foundation and Karst Cave Treatment Scheme to Sancha River Bridge at Bad Geological Section[J].Communications Standardization,2013(21):60-62. |
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| Authors: | TAO Xu |
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| Institution: | TAO Xu (Guizhou Bridge Construction Group Co., Ltd., Guiyang 550000, China) |
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| Abstract: | Based on the introduction and comparison of hole forming technology of pile foundation in moun- tainous area with bad geological condition, and considering the time limit and economical efficiency for a project, the method proposed in this paper using rubble with clay in certain proportion to form the wall backfill impact debris, overcomes the problems caused by special geological reasons,such as collapse and shrinkage of hole,etc. It will provide reference for pile foundation construction in similar geological condition. |
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| Keywords: | pile foundation bad geology Karst cave steel tube build wall |
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