南水北调与水利科技2012，Vol.10Issue(2)：6-8,3.DOI:10.3724/SP.J.1201.2012.02006
基于二次掺灰法的改良膨胀土施工工艺与检测方法
Construction and Detecting Methods for Stabilized Expansive Soil Using Two-step Lime-cement Mixing
摘要
Abstract
The expansive soil usually has high moisture content and low permeability,and it appears as conglomeration under the undisturbed conditions. Moreover,the expansive soil has high viscosity and it not easily to be destroyed. However,the laboratory and in-situ experiments showed that the swell-shrink characteristic of the expansive soil after mixing with lime and/or cement is lower than that of the general clay, and the stabilized expansive soil has high strength and low compression, thus it is a good filling material for engineering construction. The equality for mixing the lime-cement and the expansive soil is the primary factor for the stabilized effects. Therefore, the lime mixing technology is the most important technology for the construction methods of the stabilized lime-cement expansive soiL Besides that, the quantity and equality of the lime mixing soil are also important to check if they reach the designed criterion. In this paper,the construction method and the standard for quality inspection and control of stabilized expansive soil are presented based on numerous laboratory and in-situ model tests.关键词
改良膨胀土/施工工艺/质量控制/均匀性Key words
stabilized expansive soil construction method/ quality control/ equality分类
建筑与水利引用本文复制引用
冯旭松,孙衣春,王保田,张福海..基于二次掺灰法的改良膨胀土施工工艺与检测方法[J].南水北调与水利科技,2012,10(2):6-8,3.基金项目
江苏省南水北调科技创新资助项目(KJCX-200601) （KJCX-200601）
