基于保护地下管线浅埋隧道爆破探索  

Study of the Urban Shallow Tunnels Blasting on Protecting the Underground Pipeline

作　　者：高建环 赵晓磊[2] 王胜杰[2] 吴林松[2] 

机构地区：[1]大连地铁有限公司工程部,辽宁大连116021 [2]大连理工大学工业装备结构分析国家重点实验室,辽宁大连116024

出　　处：《科技创新导报》2013年第26期57-60,共4页Science and Technology Innovation Herald

基　　金：国家自然科学基金资助(10872044;10972051;10902023;11272081);工业装备结构分析国家重点实验室自主研究课题S12107

摘　　要：华泉区间为大连地铁205标段的一个暗挖区间,该区间位于大连交通要道华北路上,不仅车流量大且重载车数量多,水管线距离拱顶最近仅2.7米。因此对爆破方案进行了改进,采用分布、多段、微差延时起爆的技术施工,同时地面采取一些措施,很好的解决了如何保护地下管线这一施工难题。为以后类似施工提供借鉴意义。Quanhua Construction site is a undermining tunnel of No.205 bid lot of Dalian Metro. This construction site is located on Huabei Road where is the main traffic thoroughfare of Dalian with huge traffic load everyday. And because the distance between the water supply line and the arch crown is only 2.7m, the blasting method has been adjusted to this situation, including the construction techniques of distribution, multiple--stage, and millisecond delay blasting technique, which provides a good method to the construction obstacles of protecting underground pipelines as well as the reference for the future construction.

关 键 词：地下管线 延时起爆 预裂爆破 浅埋爆破 

分 类 号：U452.2[建筑科学—桥梁与隧道工程]