FUNCTIONAL COMPOSITION AND CHARACTERISTICS OF UNDERGROUND SPACES IN CORE ZONES OF URBAN CENTRAL RAIL STATIONS

The function structure of underground spaces in core zones of urban central railway stations (CAUCRS)is very complicated, and the cognition of its function structure still needs to be deepened. Based on the classification of underground spaces of CAUCRS, the spatial composition characteristics of the underground spaces of CAUCRS, including traffic service functions, commercial functions and integrated pipe corridors were summarized. Then, from the perspective of functional composition, the existing vertical hierarchical modes of underground spaces at home and abroad were analyzed. Finally, the principle of space planning and utilization of underground spaces in CAUCRS was put forward to provide reference for its integrated design.