润湿反转解决非开挖黏土地层缩径问题的试验研究  

Experimental Study on Wetting Inversion to Solve the Problem of Diameter Reduction in Trenchless Clay Strata

作　　者：戴斌 徐晗[2] DAI Bin;XU Han(Shanghai Gas Second Pipeline Engineering Co.,Ltd.,Shanghai 200120,China;School of Engineering,China University of Geosciences(Wuhan),Wuhan,Hubei 430074,China)

机构地区：[1]上海煤气第二管线工程有限公司,上海200120 [2]中国地质大学(武汉)工程学院,湖北武汉430074

出　　处：《施工技术》2020年第S01期1623-1625,共3页Construction Technology

摘　　要：为抑制非开挖黏土地层水化膨胀、孔壁缩径现象。利用复配表面活性剂润湿反转黏土表面,增强其疏水性。并得到适用于非开挖黏土地层的LK无固相泥浆配方,抑制黏土地层膨胀缩径。研究成果适用于非开挖黏土地层浆液设计。In order to suppress the hydration expansion and shrinkage of pore wall in trenchless clay formation.The compound surfactant is used to wet the inverted clay surface and enhance its hydrophobicity.The formula of LK solid-free mud suitable for non-excavation clay formation is obtained to suppress the expansion and shrinkage of clay formation.The research results are applicable to the design of slurry in trenchless clay formation.

关 键 词：黏土地层 缩径 抑制性 无固相泥浆 

分 类 号：TU751.2[建筑科学—建筑技术科学]