Urban underground space planning system based on function coupling theory

To explore the integrated legal system for the urban underground space planning and solve the problems in the plan making,the function coupling ideological theory was advanced and the function coupling of the whole urban system in scheme as core planning objective was made,based on the cognition for the function coupling mechanism of the internal urban underground space system.In view of the actual requirements of plan making and research,the planning fundamental procedure and its technique method system were designed including four main substances such as resource estimate,scale planning,allocation plan and scheme evaluation.The urban underground space planning system was constituted containing general plan,control detailed plan and constructive detailed plan.The relationships between the urban underground space plan and the other kinds of urban plan were defined,and each hierarchical urban underground space plan was positioned in urban planning system.The main content frames for each hierarchical underground space plan were established.So an integrated hierarchy system for urban underground space planning is preliminarily structured.