真空-堆载联合预压法加固软土地基的效果分析  

Analysis on effect of vacuum and preloading method on mollisol foundation teinforcement

作　　者：黄臣瑞 林伟斌 HUANG Chenrui;LIN Weibin(China Energy Engineering Group Guangzhou Electric Power Design Institute,Co.,Ltd.,Guangzhou 510663,Guangdong,China)

机构地区：[1]中国能源建设集团广东省电力设计研究院有限公司,广东广州510663

出　　处：《工程建设》2021年第1期29-33,共5页Engineering Construction

摘　　要：本文以珠江三角洲地区某电厂地基处理项目为例,分析采用真空-堆载联合预压法加固软土地基时真空度、孔隙水压力、地面沉降及水平位移的变化规律,并结合现场检测结果,分析和评价真空-堆载联合预压法的处理效果。结果表明:真空-堆载联合预压法加固软土地基能够有效提高软土层的物理力学指标,加固效果良好。本文研究成果可为类似工程提供借鉴。Taking as background the foundation treatment project of a power plant in the Pearl River Delta,the variation rules of vacuum degree,pore water pressure,land subsidence and horizontal displacement when consolidating mollisol foundation with vacuum and preloading method are analyzed,while the treatment effect of vacuum and preloading method is analyzed and evaluated by combining field test results.The results show that the vacuum and preloading method for consolidating mollisol foundation can effectively improve the physical and mechanical index of mollisol layer with a great reinforcement effect,and it can provide references for similar projects.

关 键 词：真空-堆载联合预压 沉降 软土 地基承载力 

分 类 号：TU447[建筑科学—岩土工程] TU472.33[建筑科学—土工工程]