Design Of Deep Pits Of Rebuild And Extend Project Of Changchun Central Hospital

Changchun City hospital expansion project for the Changchun City project is one of the important people's livelihood. The project is located in the downtown area, adjacent to the surrounding many buildings(including Manchukuo period heritage building), around municipal pipelines in numerous, complicated construction environment, according to the relevant provisions of the state, the lateral wall of the foundation pit safety ratings identified as a class. Through various schemes and expert argumentation, the final selection of underground continuous wall and internal bracing support method for foundation pit support, to ensure that the project itself and the safety of surrounding buildings.According to the engineering foundation pit digging depth (13.20m, local 18.60m), choose the project the deepest in a wall, with the project security as the starting point, combined with the project construction cost, Discusses the engineering support scheme design and construction foundation pit engineering working procedure construction organization. This paper briefly introduced the foundation pit engineering profiles, supporting structure selection, and the engineering hydrogeological conditions must be described. And then mainly discusses the excavation scheme analysis and selection, and the underground continuous wall design, at the same time the engineering support system's overall security checking. At the end of the demands of engineering design of foundation pit dewatering, the construction organization plan and foundation pit monitoring scheme for a simple description.Through the design and construction of underground continuous wall and prove that : the inner support combined with reverse construction scheme is successful, and in accordance with the needs of the project.