碱渣泡沫轻质土路基的施工方法及抗压强度测试  

Construction Method and Compressive Strength Test of Soda Residue-based Foamed Lightweight Soil Subgrade

作　　者：江舜根 于志龙 陈加富[3] 杜广印[4] 汪建斌 王正成 JIANG Shungen;YU Zhilong;CHEN Jiafu;DU Guangyin;WANG Jianbin;WANG Zhengcheng(Lianyungang Expressway Construction Command Headquarters,Lianyungang 222006,China;Lianyungang Railway Development Center,Lianyungang 222006,China;Jiangsu Traffic Engineering Construction Bureau,Nanjing 210004,China;Institute of Geotechnical Engineering,Southeast University,Nanjing 211189,China;Guangdong Shengrui Technology Co.,Ltd.,Guangzhou 511447,China)

机构地区：[1]连云港市高速公路建设指挥部,连云港222006 [2]连云港市铁路事业发展中心,222006 [3]江苏省交通工程建设局,南京210004 [4]东南大学岩土工程研究所,南京211189 [5]广东盛瑞科技股份有限公司,广州511447

出　　处：《现代交通技术》2024年第3期19-23,46,共6页Modern Transportation Technology

基　　金：江苏省交通工程建设局科技项目(2022-6)。

摘　　要：碱渣是氨碱法生产纯碱时产生的废渣,其大量堆积会污染环境。利用原状碱渣制备碱渣泡沫轻质土,并将其用作连云港至宿迁高速公路徐圩—灌云段的路基填料;优化施工方案,提出碱渣泡沫轻质土路基的施工方法;测定抗压强度,并将其与设计值及规范值进行对比。研究表明,碱渣泡沫轻质土的施工方法简单,抗压强度符合设计及规范要求。碱渣泡沫轻质土可替代传统泡沫轻质土,达到节约水泥、减少碳排放和降低工程造价的目的,具有广阔的应用前景。Soda residue is the waste residue generated during the production of soda using ammonia-soda process,and its large accumulation will pollute the environment.In this investigation,the soda residue-based foamed lightweight soil was prepared using the original soda residue,and it was employed as the subgrade filler for Xuwei-Guanyun section of Lianyungang-Suqian Expressway.Optimizing the construction scheme,the construction method of soda residue-based foamed lightweight soil was proposed;the compressive strength was determined and compared with the design and specification values.These finding demonstrate that the construction method of soda residue-based foamed lightweight soil is simple,and the compressive strength meets the design and specification requirements.The conventional foamed lightweight soil can be replaced using soda residue-based foamed lightweight soil,which can achieve the purpose of saving cement,reducing carbon emissions and engineering cost,and has a wide application prospect.

关 键 词：碱渣 碱渣泡沫轻质土 路基 施工方法 抗压强度 

分 类 号：TU525[建筑科学—建筑技术科学]