滑石大跨度隧道三台阶临时仰拱开挖快速施工技术  

Rapid Construction Technology of Three-step Temporary Inverted Arch Excavation in Talc Long-span Tunnel

作　　者：胡永强 HU Yong-qiang(Chenyu Construction Group Co.,Ltd.,Xingtai 054100,China)

机构地区：[1]宸宇建设集团有限公司,邢台054100

出　　处：《价值工程》2020年第9期134-137,共4页Value Engineering

摘　　要：结合石家庄市南绕城高速公路太行特长隧道工程实践,总结了三台阶临时仰拱法在滑石软弱地层下快速施工组织与技术应用,通过具体应用实现了很好的经济效益、技术效益和社会效益,为类似围岩地段的施工技术提供参考。Combined with the engineering practice of the Taihang Extra-long Tunnel in the South Ring Expressway in Shijiazhuang City,this paper summarizes the rapid construction organization and technical application of the three-step temporary inverted arch method under soft formation of talc,and realizes good economic,technical and social benefits through concrete application,which provides reference for construction technology similar to surrounding rock section.

关 键 词：滑石 大跨度 三台阶临时仰拱 快速施工 

分 类 号：U455[建筑科学—桥梁与隧道工程]