隧道仰拱长栈桥施工应用

doi:10.3973/j.issn.1672-741X.2012.z2.036

隧道建设（中英文） ›› 2012, Vol. 32 ›› Issue (增刊2): 187-189.DOI: 10.3973/j.issn.1672-741X.2012.z2.036

隧道仰拱长栈桥施工应用

蒋晖光，陈文超

（中铁隧道集团二处吉图珲客专JHSK-I标项目经理部第十分部，吉林延吉 133600）

收稿日期:2012-07-31 修回日期:2012-09-14 出版日期:2012-12-20 发布日期:2013-02-19
作者简介:蒋晖光（1982—），男，四川安岳人，2005年毕业于石家庄铁道学院铁道工程专业，本科，助理工程师，主要从事隧道施工管理工作。

Construction and Application of Long Invert Trestle of Tunnels

JIANG Huiguang, CHEN Wenchao

(The 10th Branch of Project Management Department of JHSK-I Bid Section of  JilinTumenHuichun Passengerdedicated Railway Line, The 2nd Engineering Co., Ltd. of China Railway Tunnel Group, Yanji 133600, Jilin, China)

Received:2012-07-31 Revised:2012-09-14 Online:2012-12-20 Published:2013-02-19

摘要/Abstract

摘要：

为解决隧道仰拱铺底速度慢、施工缝多、养护时间长等难题，介绍吉图珲客专鸡冠山隧道在工期紧、断面大且要求步距达标的条件下，利用现有资源对仰拱栈桥进行自行设计，通过机构建模计算确定栈桥安全系数，按照已确定的加工尺寸自行加工。通过普通栈桥与长栈桥在人员配置、施工时间、施工效益等对比，确定长栈桥施工的可行性，并通过实践证明长栈桥在隧道施工中能成功应用的实例。

关键词: 鸡冠山隧道, 仰拱栈桥, 最不利荷载, 施工流程, 经济比选

Abstract:

The disadvantages of invert trestle of tunnel are many, including low construction speed, lots of construction joints and long maintaining term. The invert trestle of Jiguanshan tunnel on JilinTumenHuichun passengerdedicated railway line is designed under great difficulties, such tight construction scheme, large crosssection and strict step span. The safety coefficient of invert trestle is decided by means of structural modeling calculation. The practicability of invert trestle of tunnel is decided by means of comparison and contrast between labor arrangement and construction term of common invert trestle and that of long invert trestle. The application of the long invert trestle shows that it is successful.

Key words: Jiguanshan tunnel, invert trestle, most unfavorable load, construction process, economical comparison

蒋晖光，陈文超. 隧道仰拱长栈桥施工应用[J]. 隧道建设, 2012, 32(增刊2): 187-189.

JIANG Huiguang, CHEN Wenchao. Construction and Application of Long Invert Trestle of Tunnels[J]. Tunnel Construction, 2012, 32(增刊2): 187-189.

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隧道仰拱长栈桥施工应用

Construction and Application of Long Invert Trestle of Tunnels

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