真空预压处理广州南沙区软基的加固深度探讨  

Soft foundation treatment effective reinforced depth by vacuum preloading method

作　　者：朱超[1,2] 张季超[1] 刘晨[1] 

机构地区：[1]广州大学土木工程学院,广东广州510006 [2]江苏华东工程设计有限公司,江苏南京210007

出　　处：《岩土工程学报》2010年第S2期422-425,共4页Chinese Journal of Geotechnical Engineering

基　　金：广东省科技计划项目(2004B10101048;2005A11601014);国家"十一五"科技支撑计划项目--城市地下空间建设工程化技术开发

摘　　要：通过对真空预压法处理软土地基有效加固深度的研究现状分析和工程实例中真空预压表层沉降、分层沉降和孔隙水压力现场监测的分析,找出在真空压力作用下加固效果随时间和深度的变化规律,并总结了该工程真空预压法处理软土地基的有效加固深度,进而提出在南沙地区处理深层软土地基的建议。Based on the study on effective reinforced depth of soft foundation treated by vacuum preloading method and monitoring results of surface settlement,layered deposition and pore water pressure in field tests on an actual project,the relationship between the effects of reinforced treatment with time and depth are obtained,and the effective reinforced depth of soft foundation treated by the vacuum preloading method of this project is concluded.Some suggestions for treatment of deep soft foundation are proposed in Nansha.

关 键 词：有效加固深度 真空预压 分层沉降 孔隙水压力 软基处理 

分 类 号：TU472.3[建筑科学—结构工程]