真空-水载联合预压法处理软土地基的应用技术  

Application Technology of Vacuum-water Combined Preloading Method to Treat Soft Soil Foundation

作　　者：董阳 Dong Yang(China Railway 12th Bureau Group Co.,Ltd.South China Branch,Zhongshan,China)

机构地区：[1]中铁十二局集团华南分公司,广东中山

出　　处：《科学技术创新》2023年第5期195-198,共4页Scientific and Technological Innovation

摘　　要：在真空-堆载联合预压处理软土地基的施工过程中,密封膜极易破坏,且修复困难。采用地下水代替土方堆载可避免相关难题,并解决土方堆载的雨季施工难题。结合实际工程,从地表沉降、土壤孔隙水压力消散、预压前后土体主要物理力学性质变化等方面,详细论述了其对临海淤泥地质有较好的处理效果。In the construction process of vacuum-surcharge preloading for soft soil foundation treatment,the sealing membrane is easily damaged and difficult to repair.Using groundwater instead of earthwork stacking can avoid related problems and solve the construction problems of earthwork stacking in rainy season.Combined with practical engineering,this paper discusses in detail its good treatment effect on coastal silt geology from the aspects of surface subsidence,dissipation of soil pore water pressure and changes of main physical and mechanical properties of soil before and after preloading.

关 键 词：软基处理 真空-堆载联合预压 预防密封膜破坏 水载 

分 类 号：TU447[建筑科学—岩土工程]