大断面暗挖隧道下穿地铁既有线结构监测分析  

Structural monitoring and analysis of large section mined tunnel under-passing existing line

作　　者：陈聪 胡晓龙 周兴林 Chen Cong;Hu Xiaolong;Zhou Xinglin

机构地区：[1]广东省重工建筑设计院有限公司,广东广州510700

出　　处：《现代城市轨道交通》2022年第12期58-62,共5页Modern Urban Transit

摘　　要：文章结合广州地铁18号线番禺广场站—南村万博站区间暗挖下穿既有7号线南村万博站—汉溪长隆站区间工程实例,对大断面暗挖下穿运营线路既有隧道结构监测数据进行分析,重点分析运营线路隧道沉降、椭圆度等变形规律,并针对变形规律提出可参考的建议。Taking the large section tunnel of Panyu Square Station, Guangzhou metro line 18 to Nancun Wanbo station which runs under-passing the existing Guangzhou metro line 7 metro line from Nancun Wanbo station to Hanxi Changlong station as an engineering example, the structural monitoring data of the large section mining under-passing existing metro lines was analyzed. Deformation laws such as tunnel settlement and ovality of the operation line were emphasized upon,and suggestions for the deformation laws were put forward for reference.

关 键 词：地铁 大断面暗挖 下穿既有线 监测分析 

分 类 号：TU454[建筑科学—岩土工程]