大断面小净距隧道扩建施工监控量测与分析  

Monitoring measurement and analysis of large section and small clear distance tunnel expansion construction

作　　者：田寿 方合雪 张兰 Tian Shou;Fang Hexue;Zhang Lan(Chinaroads Communication Science&Technology Group Co.,Ltd.,Shijiazhuang 050035,China)

机构地区：[1]中交远洲交通科技集团有限公司,河北石家庄050035

出　　处：《山西建筑》2022年第3期143-146,共4页Shanxi Architecture

摘　　要：结合工程实践,通过大断面、小净距隧道扩建施工现场监控量测,分析地表沉降、围岩变形和支护结构受力的变化趋势,以及施工爆破对既有相邻隧道衬砌结构的影响,判定围岩的稳定性、支护结构的合理性和施工方法的可行性。Combined with the engineering practice,through the field monitoring and measurement of large section and small clear distance tunnel expansion construction,the paper analyzes the change trend of surface settlement,surrounding rock deformation and supporting structure stress,as well as the influence of construction blasting on the lining structure of existing adjacent tunnels,and determines the stability of surrounding rock,the rationality of supporting structure and the feasibility of construction method.

关 键 词：隧道扩建 监控量测 大断面 小净距 爆破振动 

分 类 号：U455[建筑科学—桥梁与隧道工程]