富水泥岩地层盾构同步注浆配比优化与试验研究  

Study on the proportion and test of synchronous grouting of shield in water-rich mudstone strata

作　　者：牟万新 Mou Wanxin(China Railway 14th Bureau Group Co.,Ltd.,Jinan 250000,China)

机构地区：[1]中铁十四局集团隧道工程有限公司,山东济南250000

出　　处：《山西建筑》2020年第20期156-158,共3页Shanxi Architecture

摘　　要：为解决长春富水泥岩地层盾构同步注浆浆液凝结时间长、留存率低、离析及堵管等问题,开展了富水泥岩地层盾构同步注浆浆液的适配性研究,通过注浆配比优化提高了管片壁后浆液的充填效果,保证了隧道安全顺利通过各个风险源。In order to solve the problems of long setting time,low retention rate,segregation and pipe plugging of shield synchronous grouting slurry in Changchun water-rich mudstone strata,a study on the adaptability of shield synchronous grouting slurry in water-rich mudstone strata is carried out.Through the optimization of grouting ratio,the filling effect of the slurry behind the segment wall is improved,which ensure the tunnel passes through various risk sources safely and smoothly.

关 键 词：盾构隧道 充填剂 泌水率 流动性 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]