Abstract：Research purposes: Deeply foundation pit is affected by some factors and is the key problem of geotechnical engineering at present. In the course of the construction of foundation pit, the deformation of supporting structures must be surveyed and controlled strictly according to the engineering geological condition, style of the supporting and safety level of the building.
Research methods: Monitoring survey technique was applied in the monitoring of wall and supporting of the YingKouDao station construction in phase 1 project the deformation of the supporting structure and the development of the surrounding was mastered. This paper introduces about the significance, content of urban deep pit deformation survey, the layout of survey spots, data survey, etc. By executing the survey of deep pit deformation, the paper recommends relying on the dynamic information feedback of deformation survey to ensure the construction safety and optimal design of deep pit. Subsequently, corresponding technologic measures of how to control deformation in pit were proposed and fully applied to the construction in phase 1 project. Good effects were achieved in guiding Tianjin Metro construction at the same time some valuable conclusions were obtained.
Research Conclusions: In the processing of deeply foundation pit, we need monitor and control strictly the deformation of supporting structure according to scene actual engineering geologic condition, the types of supporting choice and the safe degree of buildings. Deeply foundation pit of metro is designed and constructed by information way. It is convenient to strengthen the survey and feedback the information, amend and modulate the construction scheme to make the construction in the controlled condition. In the processing of deeply lunation pit, we must strengthen survey; exactly analyze the survey result in time to ensure the safe coefficient of supporting system. And we can evaluate the former design scheme and put reward tile countermeasures to ensure the construction safety in the base of exact analysis.
王连山，焦苍，奚正平. 信息化施工技术在地铁基坑施工中的应用[J]. 铁道工程学报, 2006, 23(2): 79-82.
WANG Lian-shan, JIAO Cang, XI Zheng-ping. APPLICATION OF INFORMATIONAL CONSTRUCTION TECHNOLOGY IN DEEPLY FOUNDATION PIT EXCAVATION. 铁道工程学报, 2006, 23(2): 79-82.
2006, Vol. 23 
版权所有 © 2014 《铁道工程学报》编辑部