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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。
Taking the reinforcement project of dredging and blowing soft soil foundation formed in the land reclamation of Tianjin Port in the east coast as an example, the reinforcement mechanism of dredging soft soil foundation strengthened by vacuum preloading method was expounded. The monitoring data of the site was analyzed and the results were analyzed. In the process of foundation reinforcement, not only the deformation of soil in the reinforced area is obvious, but also the impact on the surrounding environment is significant, which is harmful to the surrounding environment. Uneven settlement and lateral displacement will occur during the consolidation of dredged dredger-filled soil foundation. Such complex deformation of soil will lead to the destruction of pipelines around the reinforcement area and the development of cracks in structures. Real-time monitoring of its effects should be taken and the necessary Protective measures.