象山隧道挡水墙爆破拆除  

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

作　　者：赵东波[1] 李红军[1] 

机构地区：[1]中铁隧道集团有限公司,河南洛阳471009

出　　处：《隧道建设》2012年第5期705-708,共4页Tunnel Construction

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。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 pi- lot 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.

关 键 词：隧道 挡水墙 爆破拆除 减震孔 超前导洞 非爆开挖 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]