Based on the engineering background of the L6 Haigang Road Station and Shishan Road Station of Qingdao Rail Transit in Shandong,it elaborates and analyzes in detail the application of active support technology based on new prestressed anchor rods,force support system conversion technology and semi-package waterproof+limited drainage technology in the construction of large-span underground arch covered stations.The research has shown that these three technologies have effectively achieved the goals of safe,high-qualityand efficient construction during the construction process.Its successful experience is worth promoting and applying in subsequent construction,and providing reference and guidance for other similar projects.
关键词
大跨度暗挖拱盖车站/主动支护/变形控制/新型预应力锚杆/受力支护体系转换
Key words
large-span concealed excavation arch covered station/active support/deformation control/newprestressed anchor rod/conversion of force support system