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青藏铁路多年冻土区桩基施工应用技术
引用本文:蔺天强.青藏铁路多年冻土区桩基施工应用技术[J].铁路工程造价管理,2006,21(6):12-14.
作者姓名:蔺天强
作者单位:中铁二十三局集团有限公司,四川,成都,610031
摘    要:1引言青藏高原多年冻土区桩基施工改变地基的热平衡条件,使桩基地温场发生变化,引起桩周地基土层范围升温及融化。为解决这一难题,必须采用相应的工程措施避免出现这些问题。此文结合唐古拉山越岭地段多年冻土区桩基施工经验论述多年冻土区桩基施工技术。2多年冻土区钻孔灌注桩

关 键 词:多年冻土区  桩基  施工  回冻
文章编号:1007-9890(2006)06-0012-03
收稿时间:07 24 2006 12:00AM
修稿时间:2006年7月24日

Application techniques of pile foundation construction in permafrost region on Qinghai-Tibet railway
Lin Tianqiang.Application techniques of pile foundation construction in permafrost region on Qinghai-Tibet railway[J].Railway Engineering Cost Management,2006,21(6):12-14.
Authors:Lin Tianqiang
Institution:Lin Tianqiang
Abstract:Combined with the Tanggula Mountains, permafrost regions and puts forward different boring methods applied for different geological conditions to prevent damage to the permafrost region. In this article, rotary drilling rig and impact-grab boring machine are recommended as the main drilling equipment. That the impacts of construction on the temperature of the permafrost ground should be reduced to the minimum should be emphasized and the re-freezing of the pile foundation should be made good.
Keywords:Permafrost region  pile foundation  construction  re-freezing
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