高速铁路隧道接触网下锚段关节处衬砌补强设计与受力分析

赵立财

doi:10.3973/j.issn.1672-741X.2013.10.006

隧道建设 >

2013 , Vol. 33 >Issue 10: 830 - 835

DOI: https://doi.org/10.3973/j.issn.1672-741X.2013.10.006

研究与探索

高速铁路隧道接触网下锚段关节处衬砌补强设计与受力分析

赵立财

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（中国铁建十九局集团有限公司，北京 100176）

赵立财(1985—)，男，辽宁营口盖人，2007年毕业于石家庄铁道学院公路与桥梁专业，加拿大魁北克大学工商管理在读硕士，工程师，从事地下工程技术研究和管理工作。

收稿日期: 2013-07-22

修回日期: 2013-08-18

网络出版日期: 2013-10-24

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Reinforcement Design of and Stress Analysis on Highspeed Railway Tunnel Lining at OCS Anchor Overlaps

ZHAO Licai

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（China Railway 19th Bureau Group Co., Ltd., Beijing 100176, China）

Received date: 2013-07-22

Revised date: 2013-08-18

Online published: 2013-10-24

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摘要

为了解决已完工隧道接触网下锚关节与中心锚结处混凝土强度满足悬挂吊柱受力要求，运用“化学锚栓锚固+钢板+斜撑”的方法对下锚段接触网关节处与中心锚结锚臂安装处衬砌混凝土进行补强加固处理。同时，利用混凝土刚度计算、吊柱受力计算、FLAC3D3.0有限元数值模拟，与已实施的补强加固情况进行对比，表明计算分析与实际情况一致性较好，证明了本文所采用方法的可行性、安全性，取得了很好的社会效益及经济效益，为今后类似工程的施工提供了技术支撑与理论依据。

关键词： 高速铁路隧道; 接触网下锚段关节; 接触网中心锚结; 衬砌补强; 吊柱数值模拟

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赵立财 . 高速铁路隧道接触网下锚段关节处衬砌补强设计与受力分析[J]. 隧道建设, 2013 , 33(10) : 830 -835 . DOI: 10.3973/j.issn.1672-741X.2013.10.006

Abstract

Reinforcement, including chemical anchor bolt, steel plate and inclined support, is made at the positions of lining with OCS anchor overlaps and midpoint anchors, in order to ensure the concrete to meet the stress limit of the drop tubes. The effect of the reinforcement described is studied by checking the concrete rigidity and the drop tube stress and by means of FLAC3D3.0 finite element numerical simulation. The study results show that the calculation results are consistent with the actual conditions. The practice proves that the reinforcement made is feasible and safe and that good social and economic benefits can be achieved. This paper can provide technical support and theoretical reference for similar projects in the future.

Key words： highspeed railway tunnel; overlap of OCS anchor section; midpoint anchor; lining reinforcement; drop tube; numerical simulation

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