施 工 技 术
CONSTRUCTION TECHN0LOGY 2014年 l2月上
第 43卷 第23期
DOI:10.7672/s s201423O092
西 宝 客 专 桥 隧 相 接 桥 梁 施 工 技 术 球
谢 文 祥 ,赵 挺 生 ,戴 志 兵 ,王 文 利 ,占征 杰
(1.华中科技大学土木工程与力学学院,湖北 武汉 430074;2.中交二航局工程装备分公司,湖北 武汉 430014;
3.湖北S-业大学工程技术学院,湖北 武汉 430068)
[摘要]西宝客运专线现有架桥机无法正常通过小村隧道,为此,在分析了架桥机通过小村隧道的施工工艺后 ,优
选了隧道进出口相接桥梁施工工艺。采用运梁车载运架桥机退回梁场后,在梁场内对架桥机小解体,然后通过隧
道;隧道进口桥梁由支架现浇梁优化为预制架设,出口相接处两孔箱粱原设计采用支架现浇作为架桥机拼装场地,
优化为利用隧道出口缓冲结构(出口缓冲结构二次衬砌后浇)和隧道出口桥梁首孔墩位处回填土拼装架桥机,然后
架设隧道前进方向预制箱梁。
[关键词]桥梁工程 ;隧道工程;架桥机 ;施工技术
[中图分类号]U445.46 [文献标识码]A 【文章编号]1002—8498(2014)23-0092-04
Construction Technology of Bridge Connecting with Tunnel for Xi’an-Baoji
High-speed Passenger Railroad Line
Xie Wenxiang ’ ,Zhao Tingsheng ,Dai Zhibing ,Wang Wenli ,Zhan Zhengjie
(1.School of Civil Engineering&Mechanics,Huazhong University of Science and Technology,Wuhan,Hubei 430074,China;
2.Engineering Equipment Branch of CCCC Second Harbour Engineering Co.,Ltd.,Wuhan,Hubei 430014,China;
3.College ofEngineering and Technology,Hubei University of Technology,Wuhan,Hubei 430068,China)
Abstract:On the Xi’an-Baoji high—speed passenger railroad line,the existing bridge erecting machine is
unable to normally pass the Xiaocun Tunne1.In view of this,after analyzing the construction technology for
the passing of the bridge erecting machine through Xiaocun Tunnel,this paper adopted the construction
technology of the bridge connecting with tunnel at the entrance and exit.After transporting the bridge
erecting machine back to the girder filed using the girder carrying vehicle,inside the girder field,this
paper conducted small dismantling of the bridge erection machine,and then passed them through the
tunne1.The bridge at the tunnel entrance was optimized into prefabricated erection,and at the joining
sections for the exit,the tow—hole box girders were originally designed to adopt the suppo~ cast—in-site
girder as the assembling field for bridge erecting machine,and it was optimized as assembling the bridge
erecting machine by adopting the bumper structures at the exits(which was cast after the secondary lining
of the bumper structures at the exit)and the backfill soil at the bridge’S first hole’S pillar at the tunnel
exit,and then erected the prefabricated box girders along the tunnel’S advancing direction.
Key words:bridges;tunnels;bridge erecting machine;construction
1 工程概 况
小村 隧道 位于 陕 西 省 宝鸡 市 陈仓 区 ,渭 河 南 岸
三级 阶 地 ,属 秦 岭 山 前 黄 土 台 塬 区 ,线 路 从 国 道
G310小 村附 近 山坡 进洞 ,下 穿 唐 家 塬 ,
西宝客专桥隧相接桥梁施工技术(论文).pdf