单线隧道大变形双层套拱初期支护施工技术  

On initial support construction technique for large deformation double-layer cover arch of single-line tunnel

作　　者：周伟涛 Zhou Weitao(Sichu Co.,Ltd.,China Railway Tunnel Group Co.,Ltd.,Nanning 530003,China)

机构地区：[1]中国中铁隧道局集团四处有限公司,广西南宁530003

出　　处：《山西建筑》2022年第11期134-137,共4页Shanxi Architecture

摘　　要：为解决单线铁路隧道初期支护结构施工后所遇到的大变形问题,以丽香铁路中义隧道施工为例,对其变形规律进行统计分析,并通过分析数据,依据设计文件及相关的施工经验,结合现场地质情况,制定了切实可行的施工方案,从而有效控制初期支护变形。In order to get rid of the large deformation after the initial support construction of the single-line tunnels,the paper undertakes the statistic analysis of the deformation rule by taking Zhongyi Tunnel along Lijiang-Shangrila Railway,and makes the feasible construction scheme by combining with the site geological conditions,so as to have the effective control over the deformation in the initial support.

关 键 词：单线隧道 初期支护变形 双层套拱 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]