淤泥质工程渣土固化制备路基土的试验研究  

Experimental Study on Preparation of Roadbed Soil by Solidification of Silty Engineering Dregs

作　　者：王伟光 陈飞翔[1,2,3] 明鑫 杨荣辉 肖蓟 Wang Weiguang;Chen Feixiang;Ming Xin;Yang Ronghui;Xiao Ji(CCCC Second Harbor Engineering Co.Ltd.,Wuhan,Hubei 430040;Key Laboratory of Large-span Bridge Construction Technology,Wuhan,Hubei 430040;Research and Development Center of Transport Industry of Intelligent Manufacturing Technologies of Transport Infrastructure,Wuhan,Hubei 430040)

机构地区：[1]中交第二航务工程局有限公司,湖北武汉430040 [2]长大桥梁建设施工技术交通行业重点实验室,湖北武汉430040 [3]交通运输行业交通基础设施智能制造技术研发中心,湖北武汉430040

出　　处：《江西建材》2022年第2期32-35,共4页Jiangxi Building Materials

摘　　要：文中以淤泥质渣土为研究对象开展固化试验。结果表明:3%石灰可使渣土粒化,易于拌合;以3%石灰调理剂和5%固化剂(水泥85%,磷石膏15%)组成的复合固化剂固化渣土相较传统水泥固化,塑性指数降低工程性更好;承载比增加60.6%达39.5%,承载能力更好;膨胀量降低57.33%达0.32%,抵抗变形能力更好;软化系数降低38.4%达23.7%,抵抗水侵蚀和破坏能力更好。In this study,the solidification test was carried out bysiltofilguardizing the study.The results show that 3%lime can granulate the residue and is easy to mix;The composite curing agent composed of 3%lime conditioner and 5%curing agent(cement 85%,phosphogypsum 15%)has lower plasticity index and better engineering properties than traditional cement;The bearing ratio increases by 60.6%to 39.5%,and the bearing capacity is better;The expansion decreased by 57.33%to 0.32%,and the deformation resistance was better;The softening coefficient is reduced by 38.4%to 23.7%,and the resistance to water erosion and damage is better.

关 键 词：工程渣土 固化剂 无侧限抗压 承载比 路基土 

分 类 号：U454[建筑科学—桥梁与隧道工程]