Soft Soil For Pit Excavation Pit Support Deformation Control

There is a row or several rows of continuous deep foundation excavation in industrialplants. There are so many structures or buildings close to the pit, the foundation pitexcavation subject to more stringent environmental constraints. And these pit in soft soil, pitexcavation cause additional deformation must meet the surrounding buildings (structures) tothe stringent requirements of the buildings, pit design must be considered in the design ofdeep foundation pit. The intensity control change for the deformation control. In this paper,based on the actual foundation pit measured, using numerical analysis methods, duringexcavation in soft soil near the pit and the impact of the retaining structure. Provide a usefulreference for engineering design and construction of similar pit.The foundation pit is an old and practical topic. There are still many problems to besolved for it development to today. Now, with the development of urban construction and theimprovement of the land utilization，means that the excavation edges closer to the surroundingbuildings and pipelines, especially in the soft soil excavation pit. It is certain difficulties ofenvironmental protection. This paper mainly includes three aspects：Analysis of the industrialplants of soft soil foundation base for the excavation of the general method to control the pitdeformation. Based on comparative analysis of field data, general rules of soft soil foundationfor industrial plants are caused by the excavation deformation, finite element analysis of theGTS the software Midas-reinforcement degree of impact on the surrounding environment(including deep displacement of the retaining structure and the surrounding ground surfacesettlement) are obtained a different impact factors of the different factors for continuousexcavation, analysis of different soil excavation the order structure on the surroundingenvironment and the foundation pit, the excavation sequence. Provide a useful reference forthe soft soil area for excavation design, construction, monitoring.The conclusion part of the combination of simulation data and actual monitoring data,made a number of engineering practice recommends，And take some personal insights aswell as in the model problems for the simulation data values. The entire discipline of soilmechanics need to be improved, in the writing of this article. Ignore the many undeterminedsimulation results have little effect secondary factor. At the end of the article summarizes thework made in this article, then pointed out the problems, and combined with the problems offurther research needs work.