Function Mixture——Complex Advance of Underground Space in Modern City

With the development of multiple city form,the city design theory needs to be more lively and be adapted to the social development demand.This essay comprehensively analyzed the complexity and demand of multiple function integrity of underground space development.On the base of analysis,a function mixture design of urban underground space is suggested,which is more active and more intensive.By using such underground space design,the function and public territory of the underground space can be better connected,thus to enrich the modern city connotation.