4-?3.0m顶管同步穿越京广铁路施工技术

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英文篇名：Construction Techniques for 4-?3.0m Pipes to Be Jacked Synchronously to Under-Cross the Beijing-Guangzhou Railway 作者：王立佳 英文作者：WANG Lijia;The 5th Engineering Co. Ltd. of the 18th Bureau Group of China Railway; 关键词：下穿铁路 ; 顶管 ; 减阻注浆 ; 施工监测 英文关键词：under-cross an existing railway;;jack the pipe;;resistance-reducing slip-casting;;construction monitoring 中文刊名：GFJT 英文刊名：Traffic Engineering and Technology for National Defence 机构：中铁十八局集团第五工程有限公司; 出版日期：2017-09-20 出版单位：国防交通工程与技术 年：2017 期：v.15;No.94 语种：中文; 页：GFJT201705012 页数：4 CN：05 ISSN：13-1333/U 分类号：47-50

摘要

结合西柏坡电厂废热利用入市项目下穿京广铁路防护涵工程,介绍多孔、大直径、小间距顶管同步下穿铁路既有线施工技术,阐述了顶管下穿前的线路加固技术、大直径顶管同步穿越过程中沉降控制措施等。监测数据表明,沉降量均控制在允许范围内,保证了铁路的安全运营。
        With the waste-heat-utilizing project of the Xibaipo Power Plant under-crossing the protective culvert for the BeijingGuangzhou Railway as an illustrative example,introduced in detail in the paper are the construction techniques for multi-pipe,large-diametered and little-separating-distance pipes to be jacked simultaneously to under-cross an existing railway,with the railway-consolidating techniques before the under-crossing of the jacked pipes,the settlement-controlling techniques in the process of the large-diametered pipes simultaneously under-crossing the railway and the like dealt with.The monitored data show that the settlement is kept within the range of the permits so that the safe operation of the existing railway is fully ensured.

引文

[1]丁良平,黄金明,黄宏伟.近距离平行顶管施工监测与技术分析[J].地下空间与工程学报,2007(S2):1421-1425,1437
    [2]徐宇.顶管施工引起的地表变形及对策[J].广东建材,2011(05):102-104
    [3]谭建国,祁志强,何国舟.注浆加固在顶管施工中的应用[C]//第十三届全国探矿工程(岩土钻探工程)学术研讨会论文专辑.北京:中国地质学会,2005:193-194
    [4]费征云.大直径曲线顶管穿越既有地下构筑物的变形控制[J].城市道桥与防洪,2012(07):298-300,25
    [5]吴义.顶管施工对周边土体和环境的扰动分析[J].物流工程与管理,2011(05):126-127