Application of Pipe Jacking Method in Construction of Urban Central Rail Transit
With the gradual perfection of urban rail transit network,the contradiction between the construction of underground station in the urban central rail transit and the surrounding environment is extremely prominent.It is desiderate to explore the new construction method of ensuring safety,less removal and little influence for providing the technical reserve of underground station construction in the more complex environment.Taking the projects of Fenghuangchi Station No.4 Entrance and Exit Street Crossing,Jinniushan Station No.2 and No.3 Entrance and Exit Street Crossings,and Provincial Hospital Station-Dongmen Station(formerly Tatou Station)as the examples,the application of pipe jacking method in the construction of urban central rail transit is explored.The surrounding environments,construction method selections,construction difficulties and surrounding environment protective measures of three street crossings and one crossing section project are introduced in detail.After the engineering practice,this project attains the requirements of reducing the construction site,reducing the influence on the urban environment and controlling the deformations of the ground and pipeline,which achieves the goal of green,environment protection and safety.
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