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.
出处
《工程勘察》
CSCD
北大核心
2009年第11期11-15,共5页
Geotechnical Investigation & Surveying
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
dredging blow fill foundation
reinforcement mechanism
in-situ monitoring
result analysis
environmental effect
