真空预压法处理疏浚吹填土软基的监测与环境影响分析  

Monitoring and environmental effect analysis of vacuum preloading method on soft foundation treatment of dredging blow fill

作　　者：张更生[1] 程瑾[1] 韩红利[2] 

机构地区：[1]中交天津港航勘察设计研究院有限公司,天津300450 [2]天津外国语学院,天津300450

出　　处：《工程勘察》2009年第11期11-15,共5页Geotechnical Investigation & Surveying

摘　　要：以天津港东疆围海造地形成的疏浚吹填软土地基加固工程为例,阐述了真空预压法加固疏浚吹填软土地基的加固机理,对现场的监测数据进行了成果分析,指出软基加固过程中不仅加固区域内土体变形明显,而且对周边环境影响显著,对周边的环境存在着危害。疏浚吹填土地基土体加固时会产生不均匀沉降和侧向位移,土体的这种复杂变形会造成加固区周边管线破坏和构筑物裂缝的发展,应该对其影响进行实时监测,采取必要的防护措施。In this paper blow fill soft foundation, hazardous to surrounding , it introduces the reinforcement mechanism of vacuum analyzes in-situ environment is nitoring data, and then pointes out preloading method in dredging that soil deformation which is not only obvious in reinforcement area, but also significant on the influence of surrounding environment. One example of the project is the dredging blow fill soft foundation of surrounding sea to make land in Dongjiang base of Tianjin port. It causes uneven settlement and lateral displacement on the soil reinforcement of dredging blow fill soft foundation, complex deformation of soil induced pipeline damage and development of structure crack around preloading area, so that it should carry out real time monitoring on its influence and should adopt necessary protective measures.

关 键 词：疏浚吹填土地基 加固机理 现场监测 成果分析 环境影响 

分 类 号：TU472.33[建筑科学—结构工程]