城市中心区地下空间城市设计研究——构建地面上下“双层”城市

Research for Urban Design of Underground Spaces in Central Area——Building up Double-Decker City

城市中心区地下空间处于岩石封闭系统中,地下建筑与地面建筑在设计及表达上具有较大差异。通过对地面建筑及城市设计方法的类比,基于凯文·林奇所提出的城市设计五要素,研究城市中心区地下—地面"双层"城市设计方法,旨在消除地下街的迷途感并增强地下空间开发的系统性。提出地下空间城市设计需要与地面城市相对应,包括"区域:空间的分区主题设计","节点:地下空间节点创造","标志:地下空间高潮点及中心","边界:地下空间界面设计","路径:导向系统及导视系统"五个方面,并形成地下、地面立体对应关系,构建完整的"双层"城市空间系统,为整个城市系统服务。

Underground space of central area is in the closed rock system. And there are many differences between underground and ground buildings in design and form. According to the five elements of urban images identified by Kevin Lynch, and by comparing the ground buildings and urban design method, this paper focus on studying the urban design method of double-decker city in central area in order to eliminate the lost feeling in underground street and enhance the systematic development of underground space. Then it proposes that underground space design should correspond to the ground city including “areas： theme design for space partition”, “nodes： underground space nodes creation”, “mark： peak point and center of underground space”, “boundary： interface design of underground space” and “Path： guiding system and visual system” to form stereoscopic correspondence for underground and ground space, build up the complete “double” city image system, as well provide services for the whole city.