水压光面爆破在特长隧道开挖中的应用  

Application of Water Pressure Smooth Blasting in Excavation of Extra-long Tunnel

作　　者：闫有民 刘国军 杨鹏 陆彦林 常彦军 杨元兵 滕潇 李鹏程 YAN Youmin;LIU Guojun;YANG Peng;LU Yanlin;CHANG Yanjun;YANG Yuanbing;TENG Xiao;LI Pengcheng(Gansu Luqiao Construction Group Co.,Ltd,Lanzhou 730000,China;Gansu Chemical Industry Research Institute Co LTD,Lanzhou 730020,China;Civilian Blasting Engineering Technology Research Center in Gansu Province,Lanzhou 730020,China)

机构地区：[1]甘肃路桥建设集团有限公司,兰州730020 [2]甘肃兰金民用爆炸高新技术有限责任公司,兰州730020 [3]甘肃省民用爆炸工程技术研究中心,兰州730020

出　　处：《交通工程》2021年第6期52-56,62,共6页Journal of Transportation Engineering

基　　金：甘肃省交通运输厅科研项目(项目编号2017-007).

摘　　要：在隧道开挖施工中,爆破方案的选择非常重要,相同的围岩,选择不同的爆破方案,将直接影响爆破效果,直接决定隧道施工进度和成本.为了解决敦当高速公路阿尔金山特长隧道施工中存在的爆破超欠挖严重、爆堆和块度不均匀及排烟时间长等问题,在高寒特长公路隧道中采用水压光面爆破技术,不但降低了爆破炸药单耗,缩短隧道掘进循环时间,通过爆破后水袋中的水雾化,可有效降低炮烟和粉尘对人体的危害,有效提高施工效率,降低隧道开挖成本.In tunnel excavation,the choice of blasting scheme is very important,the same surrounding rock,choose different blasting scheme,will directly affect the blasting effect,directly determine the tunnel construction schedule and cost control.To solve,when existing in highway tunnel construction on rain mountain blasting over break serious,heap and uneven fragmentation and smoke extraction time is long,using hydraulic pressure in the alpine extra-long highway tunnel smooth blasting technology,not only reduce the specific charge blasting,shorten the cycle time of tunneling,through the water in the water spray after blasting,can effectively reduce the gun smoke and dust harm to human body,improve construction efficiency,reduce the cost of tunnel excavation.

关 键 词：水压光面爆破 特长隧道 隧道掘进 节能 环保 

分 类 号：U418[交通运输工程—道路与铁道工程]