三臂凿岩台车在铁路单线隧道施工中功效提升与超耗量控制的应用  

Application of three-arm drilling trolley in efficiency improvement and excess consumption control of railway single-line tunnel construction

作　　者：尹江 刘佳明 王耀东 YIN Jiang;LIU Jiaming;WANG Yaodong(China Railway no.2 Engineering Group Co.,LTD,Chengdu 610091,China)

机构地区：[1]中铁二局集团有限公司,四川成都610091

出　　处：《铁路工程技术与经济》2023年第4期30-34,共5页Railway Engineering Technology and Economy

基　　金：中国中铁股份有限公司科技研究开发计划重点课题(2022-重点-41)。

摘　　要：文章依托某项目单线铁路隧道三臂凿岩台车在开挖钻眼施工中的应用,通过凿岩台车推进梁的改装及现场支护工艺调整,控制开挖掏槽眼及周边眼的角度,进而降低隧道循环时间及超挖量,为今后单线隧道大机施工提供一些经验参考。Based on the application of the three-arm rock drilling trolley in the excavation and drilling construction of a single line railway tunnel,this paper controls the Angle of the excavation cut hole and the surrounding hole through the modification of the beam and the adjustment of the on-site support technology,and then reduces the tunnel cycle time and overcut amount,providing some experience reference for the future construction of the single line tunnel.

关 键 词：单线铁路隧道 三臂凿岩台车 掏槽眼 周边眼外插角 支护工艺调整 循环时间 超挖量 

分 类 号：U455.6[建筑科学—桥梁与隧道工程]