横山隧道水平岩层快速施工综合技术

侯小军

doi:10.3973/j.issn.1672-741X.2012.z1.010

隧道建设 >

2012 , Vol. 32 >Issue 增刊1: 45 - 49

DOI: https://doi.org/10.3973/j.issn.1672-741X.2012.z1.010

施工技术

横山隧道水平岩层快速施工综合技术

侯小军

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（中铁一局集团有限公司, 西安 710054）

侯小军（1974—），男，陕西宝鸡人，1998年毕业于西南交通大学土木学院地下工程与隧道工程专业，工程硕士，高级工程师，长期从事隧道施工技术管理工作。

收稿日期: 2012-09-18

修回日期: 2012-10-15

网络出版日期: 2013-02-19

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Comprehensive Rapid Construction Technologies for Hengshan  Tunnel in Horizontal Stratum

HOU Xiaojun

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(China Railway First Engineering Group Co., Ltd., Xi’an 710000, China)

Received date: 2012-09-18

Revised date: 2012-10-15

Online published: 2013-02-19

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摘要

太中银铁路横山隧道主要以水平岩层（岩层水平夹角小于10°）为主，围岩从薄层到厚层，中风化到泥沙层均有。在前期施工中，隧道开挖后拱顶部位围岩极易出现开裂、脱落、掉块，甚至塌方等现象，初期支护施工后拱顶仍然易出现较大沉降、开裂、严重变形等现象，施工进度缓慢。为了解决上述问题，对水平岩层特性进行研究分析，并通过不断调整开挖方法、初期支护等参数，优化资源配置，加强关键工序的过程控制和现场管理等措施，形成了一套水平岩层隧道安全、快速的综合施工技术，以期为该类围岩隧道的设计和施工提供参考。 

关键词： 隧道; 水平岩层; 初期支护

本文引用格式

侯小军 . 横山隧道水平岩层快速施工综合技术[J]. 隧道建设, 2012 , 32(增刊1) : 45 -49 . DOI: 10.3973/j.issn.1672-741X.2012.z1.010

Abstract

The main surrounding rocks of Hengshan tunnel on TaiyuanZhongweiYinchuan railway is almost horizontal stratum. Cracks, drops and collapse often occur to tunnel crown after tunnel excavation.Large settlement still happens after primary supporting.The characteristics of the horizontal stratum are studied.The excavation methods and primary support parameters are adjusted. Resources are optimized, and construction course control and site management are strengthened.A suit of comprehensive rapid and safe construction technology for tunnel in horizontal stratum is obtained.The paper can provide references for design and construction of tunnels with similar surrounding rocks.

Key words： tunnel; horizontal stratum; primary supporting

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