Abstract:

The large transfer station has characteristics such as multiple architectural functions, high usage standard and complex structural types due to large rivercrossing shield tunnel. The issues, i.e. the transfer mode, building scheme, usage function, space efficiency, project risk and structural stress, are discussed by taking operation Xujiapeng Station on Wuhan Metro Line No. 8 with distinctive architectural space; and some feasible and rational engineering design innovation measures are put forward. With the help of lifting space, enlarging column span, permeable atrium, special decoration and different levels of spatial layout, a high and large spatial effect of the station is realized. The safety of the superdeep large foundation pit under high confined aquifer conditions of the firstclass terrace of the Yangtze River is guaranteed by rational support system and water stopping scheme. The problems such as large span of station and design and opening of large atrium structure are solved by upliftresistant piles on the floor, platewall joints with axillary, temporary force transfer system and beamcolumn transfer system. The station public space is saved by innovative Ytype escalator column and suspension overpass.

Key words: Wuhan Metro, Xujiapeng Station, transfer station, distinctive architectural space, architectural function, structure type, design measure