Abstract:At present, the underground pumping house in a lot of drainage projects is constructed by the way of foundation pit support. The structures in the large-sized drainage pumping houses have the characteristics of higher floor height and complex internal parting wall layout in each underground floor. Therefore, there are difficult problems of internal supporting layout and replacement in the design and construction of foundation pit supporting projects. Taking the optimization design of foundation pit for a large-sized drainage pumping house as an example, a method of utilizing the structural feature layout for the support replacement of underground structures for water supply and drainage is discussed in order to decrease the support replacement difficulty in the foundation pit supporting project and to speed up the construction schedule.
