管棚注浆技术在黄土隧道洞口段加固中的研究  

The study of pipe roof grouting technology in reinforcement of loess tunnel portal section

作　　者：吉东风 姚哨峰 郝伯瑾[3] 张占锋 

机构地区：[1]焦作市城市建设项目管理有限公司,河南焦作454150 [2]上海交大船舶海洋与建筑工程学院,上海200240 [3]黄河水利科学研究院,河南郑州450003 [4]河南同晟置业有限公司,河南郑州450008

出　　处：《山西建筑》2014年第16期211-212,共2页Shanxi Architecture

摘　　要：结合某黄土隧道的工程实例,通过三维有限元模拟计算,分析了不同管棚长度下隧道围岩的变形和应力,以及不同长度管棚对洞口段加固效果的影响,结果表明在黄土隧道施工中利用注浆加固技术能够很好地保证围岩的稳定性。Combined with the project of a loess tunnel, we calculate the deformation of tunnel surrounding rock under different length of pipe roof as well as the stress through 3D finite element simulation. Analysis of different length of pipe roof reinforcement effect in the entrance section of the tunnel was made, it is illustrated that the use of grouting reinforcement in the loess tunnel construction technology can effectively guarantee the stability of surrounding rock.

关 键 词：黄土隧道 管棚支护 注浆加固技术 有限元分析 

分 类 号：U453.1[建筑科学—桥梁与隧道工程]