城市地下空间资源综合利用实践——以成都市地质环境图集(2017)数据集为例

Practice in Comprehensive Utilization of Urban Underground Space Resources--Taking the Dataset of Geological Environmental Atlas of Chengdu(2017)as a Case Study

在全面收集地质和工程勘察资料基础上,系统梳理了成都市地下空间资源综合利用需要防范关注的7类地质问题以及需要统筹保护的4类地质资源。根据城市地下空间资源综合利用约束性地质要素(地质问题、地质资源)和地质结构在垂向上的差异,将成都市0~200 m地下空间划分为0~30 m、30~60 m、60~100 m、100~200 m 4个层位,在此基础上,提出了成都市地下空间分区、分层开发利用建议,编制了《支撑服务成都市地下空间资源综合利用地质环境图集》。图集范围覆盖成都市中心城区、高新西区、高新南区、国际生物城、天府新区成都直管区、天府空港新城、简州新城、淮州新城等重点地区,包括39张图件和1个地质调查报告。图集为成都市城市地下空间综合利用、城市空间优化拓展、城市功能品质提升以及国土空间开发、空间转型升级和城市集约、绿色、可持续发展提供了地质依据,对于全国其他城市开展同类图集编制具有示范和借鉴意义。

In this paper,based on the extensive collection of materials of geological and engineering investigation,seven categories of geological problems to be prevented and noted and four categories of geological resources to be protected in Chengdu were systematically collated for urban underground space utilization.The underground space in Chengdu has a depth of 200 m that is divided into four layers:0-30 m,30-60 m,60-100 m and 100-200 m,which differ in geological elements(in terms of geology and geological resources)constraining urban underground space utilization,as well as geological structure in vertical direction.Afterwards,the recommendation that the urban underground space in Chengdu should be developed and utilized by zones and layers was proposed,and the Geological Environmental Atlas of Chengdu for Supporting and Serving Comprehensive Utilization of Urban Underground Space Resources(also referred to as the Atlas)was drafted.The Atlas contains thirty-nine maps and one geological survey report.It covers key areas of Chengdu,including the Central Urban Area,both the South and West Parks of Chengdu Hi-Tech Industrial Development Zone,Tianfu International Bio-town,Tianfu New Area(under the direct administration of Chengdu Municipality),Tianfu International Airport City,Jianzhou New Town and Huaizhou New Town.The Atlas will provide the geological basis for comprehensive utilization of urban underground space,optimization and expansion of urban space,quality improvement of urban functions,the development of land spaces,transformation and upgrade of the space,and intensive,environmentally-friendly and sustainable urban development of Chengdu.Furthermore,it will offer a demonstration and reference for other cities to prepare an atlas of this kind.