高压旋喷注浆技术在富水砂层隧道中的应用  

On application of high-pressure jet grouting technique in rich-water sand tunnels

作　　者：杨朝帅[1,2,3] 王光辉[1,2,3] 

机构地区：[1]中铁隧道集团有限公司,河南洛阳471009 [2]中铁隧道集团科学技术研究院有限公司,河南洛阳471009 [3]中铁隧道集团勘测设计研究院有限公司,河南洛阳471009

出　　处：《山西建筑》2017年第2期167-169,共3页Shanxi Architecture

摘　　要：结合兰渝铁路桃树坪隧道出口工程实况,提出了高压旋喷注浆加固和洞内降水的综合加固方法,解决了施工中仰拱水量大、流砂涌水、支护结构开裂等问题,实现了大断面施工机械化,有效加快了施工进度,经济效益良好。Combining with the tunnel exit of Taoshuping Tunnel along Lanzhou-Chongqing Railway,the paper points out the comprehensive consolidation methods for the high-pressure jet grouting consolidation and cave dewatering,and solves the problems including the big amount of inverted water volume,quicksand and water inflow,and cracks in support,so as to realize the mechanization of the large-section construction and accelerate the construction progress and better economic benefits.

关 键 词：高压旋喷注浆 隧道 富水砂层 机械化施工 

分 类 号：U455.5[建筑科学—桥梁与隧道工程]