Construction Key Technology Analysis In Jingjianglu Transfer Station Of Tianjin Metro Line2

Adjacent to the surrounding buildings,so many underground pipelines, close tothe busy traffic,the JingJiang Transfer station engineering in Tianjin metro line2isvery difficult,so the construction of the deep pit needs high technical requirements.Intianjin urban construction for foundation pit in soft soil layer construction must besafety, and the precipitation and earthwork excavation and foundation pit deformationcontrol put forward higher requirements.Based on the construction period of JingJiang Transfer metro station, the mainconstruction key technology and methods such as using open dig method and pitmonitoring are introduced, and the partial adjustment to the support system of usingPLAXIS software is analyzed.Firstly,the transfer station engineering environment andthe hydrogeologic conditions are analyzed, the open dig method along the approach isadopted by the construction characteristics of the precipitation in the construction, themain body of retaining structures used to connect wall construction is presented, andthe "time-space effect" theory guidance of earthwork excavation and support offoundation pit construction of earthwork excavation construction concrete technologyare described, risk contingency plans are expressed. This article page is also discussedthe safety of the adjusted6thconcrete inner support system using the numericalanalysis. Finally, the excavation construction monitoring technology and themeasured data are in the narrative. Through the application of practical engineering,using the mixed support system of the underground continuous wall in deepfoundation pit retaining system achieved good comprehensive benefits, theconstruction quality is qualified, deformation is within the scope of control,safety riskis under control.The construction experience and key technology, has significantreference for similar engineering.