| 青藏铁路多年冻土区钻孔桩基础个别问题探讨及设计对策 |
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| 引用本文： | 高翰青.青藏铁路多年冻土区钻孔桩基础个别问题探讨及设计对策[J].冰川冻土,2004,26(Z1):194-196. |
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| 作者姓名： | 高翰青 |
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| 作者单位： | The First Railway Survey and Design Institute, Lanzhou Gansu 730000, China; |
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| 摘 要： | Part of soil around cast-in-place pile will thaw because the heat of hydration produced by concrete during construction. In this paper soil upfreezing action to pile during refreezing process is analyzed, and the measures to the action are put forward. Furthermore, soil frictional forces to pile due to the thawing of part of soil around pile and the slowness of refreezing after construction is discussed and a rational method is suggested.
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| 关 键 词： | cast-in-place pile refreezing of soil upfreezing action drill frictional pile 青藏铁路 多年冻土区 钻孔 桩基础 个别问题 设计对策 Regions Permafrost Railway Problems Pile Foundation forces thawing slowness during construction rational method measures upfreezing action forward |
Discussions and Measures to Several Drill Pile Foundation Problems of the Qinghai-Tibet Railway in Permafrost Regions |
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| GAO Han-qing.Discussions and Measures to Several Drill Pile Foundation Problems of the Qinghai-Tibet Railway in Permafrost Regions[J].Journal of Glaciology and Geocryology,2004,26(Z1):194-196. |
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| Authors: | GAO Han-qing |
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| Abstract: | Part of soil around cast-in-place pile will thaw because the heat of hydration produced by concrete during construction. In this paper soil upfreezing action to pile during refreezing process is analyzed, and the measures to the action are put forward. Furthermore, soil frictional forces to pile due to the thawing of part of soil around pile and the slowness of refreezing after construction is discussed and a rational method is suggested. |
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| Keywords: | cast-in-place pile refreezing of soil upfreezing action drill frictional pile |
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