碱性环境对固化天津海积软土强度影响的试验研究  

Experimental study of alkaline environment effects on the strength of cement soil of Tianjin marine soft soil

作　　者：杨爱武[1,2,3] 闫澍旺[1] 杜东菊[2,3] 赵瑞斌[2,3] 刘举[2,3] 

机构地区：[1]天津大学建筑工程学院,天津300381 [2]天津城市建设学院土木工程系,天津300384 [3]天津软土工程特性与工程环境重点实验室,天津300384

出　　处：《岩土力学》2010年第9期2930-2934,共5页Rock and Soil Mechanics

基　　金：天津市科技发展计划项目(No.04311381);天津市科技发展计划重点科技攻关项目(No.06YFSZSF04000);科技创新能力与环境建设平台项目(No.06SYSYJC14900)

摘　　要：天津滨海新区海积软土工程特性较差,难以直接满足工程建设要求,需要进行相应地处理。文中介绍了以天津海积软土为原料的水泥土掺碱性外加剂的固化效果,并对其固化效果进行了现场验证试验以及微观结构分析研究。试验结果表明,碱性环境对水泥土强度的提高具有很大促进作用,并能节省工程费用,值得在工程实践中推广应用。The engineering properties of Marine soft soil of Tianjin Binhai New Area is difficult to directly meet the requirements of constuction,so need for appropriate treatment and disposal.The effect of solidification of soil-cement adding alkaline agent based on raw materials of tianjin marine soft soil and analysis of filed verification test and microstructure are introduced.The results indicate that alkaline environment has a great role in improving the strength of cement-soil;and also can save the cost of project construction,it is worth to appliying in project practice.

关 键 词：海积软土 碱性环境 固化效果 微观结构 

分 类 号：TU447[建筑科学—岩土工程]