单线隧道Ⅲ级围岩全断面不同爆破开挖工法对比  

Comparison of full-face different blasting excavation method in grade Ⅲ surrounding rock section of single-track tunnel

作　　者：张庆龙 王昌 冯海潮 傅洪贤[3] 张峰 管晓明[4] 高涛 陶永宝 何维维 ZHANG Qing-long;WANG Chang;FENG Hai-chao;FU Hong-xian;ZHANG Feng;GUAN Xiao-ming;GAO Tao;TAO Yong-bao;HE Wei-wei(Bridge and Tunnel Engineering Company of the Third Engineering Group Co.,Ltd.,China Railway,Chengdu 610000,China;Xi’an-Chengdu Railway Passenger Dedicated Line Shaanxi Co.,Ltd.,Xi’an 710043,China;School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China;School of Civil Engineering,Qingdao University of Technology,Qingdao 266033,Shandong,China)

机构地区：[1]中铁三局集团桥隧工程有限公司,成都610000 [2]西成铁路客运专线陕西有限责任公司,西安710043 [3]北京交通大学土木建筑工程学院,北京100044 [4]青岛理工大学土木工程学院,山东青岛266033

出　　处：《工程爆破》2024年第4期67-72,共6页Engineering Blasting

基　　金：西成铁路客运专线陕西有限责任公司科技研究重点开发计划基金资助项目(西康高铁合(2021)18号)。

摘　　要：凿岩台车作为先进的隧道钻孔设备,钻孔速度快、施工安全和对环境友好,但是施工单位普遍使用积极性不高。依托秦岭太兴山长大高铁单线隧道爆破施工,综合对比分析研究了手风钻和凿岩台车2种钻爆施工方法的钻孔和装药效率、爆破超欠挖量、开挖成本、设备配件消耗费、折旧费、施工人员数量和安全性。结果表明:高铁单线隧道采用凿岩台车钻爆的施工效率低于手风钻,且凿岩台车爆破超挖量是手风钻的2倍以上,隧道爆破开挖总成本高于手风钻钻爆施工;但是凿岩台车施工安全性高,隧道掌子面施工环境友好,施工人员数量是手风钻的一半。最后指出凿岩台车钻爆是隧道爆破施工的趋势,给出了在人员培训和标准制定方面的一些建议。As an advanced tunnel drilling equipment,the drilling jumbo has the advantages of fast drilling speed,safe construction and environmental friendliness,but the construction units are generally not motivated to use it.Based on the blasting construction of single-line tunnel of Taixingshan high-speed railway in Qinling Mountains,the drilling and charging efficiency,blasting overbreak and underbreak,excavation cost,equipment and parts consumption cost,depreciation cost,number of construction personnel and safety of two kinds of drilling and blasting construction methods of hammer drill and drilling jumbo are comprehensively compared and analyzed.The results show that the construction efficiency of drilling and blasting with drilling jumbo is lower than that of hammer hand drill in high-speed railway single-line tunnel,and the over-excavation amount of rock drilling jumbo is more than twice that of hand drill,and the total cost of tunnel blasting excavation is higher than that of hammer hand drill.However,the construction safety of the drilling jumbo is high,the construction of the tunnel face is environmentally friendly,and the number of construction personnel is half of the hand drill.Finally,it is pointed out that the drilling and blasting of rock drilling jumbo is the trend of tunnel blasting construction,and some suggestions on personnel training and standard formulation are given.

关 键 词：铁路隧道 凿岩台车 手风钻 钻爆 施工工效 

分 类 号：U25[交通运输工程—道路与铁道工程] TD235[矿业工程—矿井建设]