山地城市核心区地下空间开发适宜性三维评价

3D Evaluation of Suitability of Underground Space Development in Core Areas of Mountainous Cities

针对山地城市核心区特殊的地形地质、区位价值、建设现状等条件,利用三维精细化评价基本单元体划分城市地下空间,采用层次分析法构建适宜性评价因子体系,并建立敏感因子–模糊–变权复合模型作为评价计算方法,实现了山地城市核心区地下空间开发适宜性三维评价,可为地下空间开发三维规划提供指导和借鉴。以重庆市渝中半岛为例,获得其0~150 m地下空间开发适宜性三维立体分区及深度–适宜性分区占比变化关系,并选取典型区块对评价方法可靠性进行验证。

In view of the special topography,geology,construction status and location value of underground space construction in the core area of mountainous cities,a basic unit of 3D fine evaluation is used to divide urban underground space,the analytic hierarchy process is used to determine the suitability evaluation factor system,and a sensitive factor-fuzzy-variable weight composite model is established as the evaluation calculation method.The three-dimensional evaluation of the suitability of underground space development in the core area of mountainous cities is realized,which can provide guidance and reference for the 3D planning of underground space development.Taking the Yuzhong Peninsula of Chongqing as an example,the 3D divisions of the suitability of the 0 to 150 m underground space and the changes in the proportion of depth-suitability divisions are obtained.In addition,a typical block is selected to verify the reliability of the evaluation method.