Base On A Project In Handan Foundation Pit Dewatering Effect On Foundation Pit Supporting Analysis

Due to the limited land resources,underground space is constantly beingdeveloped and utilized,the emergence of a large number of deep Foundation Pit.In theshallow groundwater embedded depth areas,to ensure the normal operation of theconstruction,we must consider the impact of groundwater on the Foundation PitEngineering.And for groundwater control,the most common approach is to FoundationPit Dewatering.In the process of precipitation,Foundation Pit seepage field changes,itmay cause large deformation and destruction of the soil,thus causing seriousconsequences.Through this study,we can betterly understand the role and influence ofprecipitation and excavation on soil consolidation settlement,and the effects andmechanism of groundwater excavation.The main contents are as follows.Naturecharacteristics of soils and groundwater movement law,and analysis of the influence ofchanges in groundwater level on the soil consolidation settlement.learn well pointdewatering design theory.calculation of soil consolidation settlement when differencesstudy on the mechanism of soil consolidation caused by dewatering of foundation pit.After that base on a practical construction information in Handan,statistical analysis ofgroundwater level and other monitoring data;the calculation and calculation theory withLizheng software,grasp the temporal effects of excavation precipitation caused soilconsolidation,research on the influence of changes in groundwater level on thesupporting structure and the surrounding surface subsidence.At last application ofGeoStudio2007 numerical simulation software.establishing numerical model offoundation pit engineering.Using numerical models,the process of simulating thedewatering of foundation pit,relationship support structure excavation precipitationcaused by foundation pit and the ground surface settlement and deformation monitoringdeformation values between the actual.