象山隧道挡水墙爆破拆除

赵东波，李红军

doi:10.3973/j.issn.1672-741X.2012.05.017

隧道建设 >

2012 , Vol. 32 >Issue 5: 705 - 708

DOI: https://doi.org/10.3973/j.issn.1672-741X.2012.05.017

施工技术

象山隧道挡水墙爆破拆除

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（中铁隧道集团有限公司，河南洛阳 471009）

赵东波(1975—)，男，安徽砀山人，1998年毕业于长沙铁道学院建筑管理专业，本科，高级工程师，现从事技术管理工作。

收稿日期: 2012-04-09

修回日期: 2012-04-23

网络出版日期: 2012-10-30

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Case Study on Blasting Demolition of Waterstopping Wall of Xiangshan Tunnel

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(China Railway Tunnel Group Co., Ltd., Luoyang 471009, Henan, China)

Received date: 2012-04-09

Revised date: 2012-04-23

Online published: 2012-10-30

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摘要

象山隧道的混凝土挡水墙和抗剪斜墙与隧道衬砌连成整体，厚度分别为7 m和5 m。为了拆除挡水墙和抗剪斜墙并保证衬砌安全，采用了预留保护层、预钻减震孔、非爆开挖超前导洞、严格控制单段爆破用药量、合理设计爆破参数等技术措施，成功拆除了挡水墙和抗剪斜墙，取得了很好的效果。

关键词： 隧道; 挡水墙; 爆破拆除; 减震孔; 超前导洞; 非爆开挖

本文引用格式

赵东波，李红军 . 象山隧道挡水墙爆破拆除[J]. 隧道建设, 2012 , 32(5) : 705 -708 . DOI: 10.3973/j.issn.1672-741X.2012.05.017

Abstract

The thicknesses of the concrete waterstopping wall and antishearing wall of Xiangshan tunnel are 7 m and 5 m respectively. Countermeasures, including reserving protection layer, drilling vibrationreducing hole, nonblasting pilot heading, strict control of the charging quantity of each interval and rational blasting parameter design, are taken in order to demolish the waterstopping wall and the antishearing wall and to ensure the safety of the lining. In the end, good result has been achieved.

Key words： tunnel; waterstopping wall; blasting demolition; vibrationreducing hole; pilot heading; nonblasting excavation

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