中心城区大跨度大断面隧道爆破施工技术

摘要

Shengang Tunnel of Guangzhou-Shenzhen-Hongkong Passenger Line lies in central area of Shenzhen City. It, constructed with tunneling method, transits from double lines in one tunnel to single line in two tunnels. Based on the prac- tice of Guangzhou-Shenzhen-Hongkong Passenger Line, the paper introduces the blasting technology for tunnel construction with big span ＆ Large section in city center.%广深港客运专线深港隧道位于深圳市中心城区,由单洞双线过渡到双洞单线,采用矿山法施工。结合深港隧道工程实践,介绍在中心城区大跨度、大断面爆破施工技术。