超浅埋暗挖隧道二衬力学分析及施工工艺改进  

Mechanical Analysis of Secondary Lining of Super Shallow Buried Tunnel and Improvement of Construction Technology

作　　者：董光 DONG Guang(China Railway No.9 Group No.7 Engineering Co.,Ltd.,Shenyang 110000,China)

机构地区：[1]中铁九局集团第七工程有限公司,沈阳110000

出　　处：《价值工程》2021年第5期133-138,共6页Value Engineering

摘　　要：文章结合大连湾红星隧道二衬实际情况,重点研究了下穿既有公路超浅埋暗挖隧道二衬力学特性,主要使用太沙基理论和北京矿山法对二衬的荷载、弯矩、剪力、轴力等分别进行计算,并提出了超浅埋暗挖情况下隧道二衬施工控制措施。研究表明,此项目中采用的二衬力学分析计算符合实际,二衬施工工艺选择合理,值得在类似工程项目中推广使用。Based on the actual situation of the secondary lining of the Hongxing Tunnel in Dalian Bay,this article focuses on the mechanical properties of the secondary lining of the ultra-shallow buried tunnel underpassing the existing highway,mainly using the Terzaghi theory and the Beijing mining method for the calculation of load and moment,shear force,axial force,etc..And the construction control measures of the second lining of the tunnel under the condition of super shallow buried and concealed excavation were put forward.Studies have shown that the mechanical analysis and calculation of the secondary lining used in this project are in line with reality,and the selection of the construction technology of the secondary lining is reasonable,and it is worthy of popularization and use in similar projects.

关 键 词：超浅埋暗挖 二衬力学分析 二衬施工工艺 

分 类 号：U455[建筑科学—桥梁与隧道工程]