苏南都市圈城市地下空间资源开发利用现状与地质调查对策

Development and utilization of urban underground space resources and geological survey countermeasures in southern Jiangsu metropolitan area

地下空间资源是地表基质层中宝贵的自然资源之一,其作为城市有机体的重要组成部分,在未来城市建设中起着举足轻重的作用。苏南都市圈城市地下空间资源开发在全国处在领先地位,地下空间规划管理方面已形成较为完善的体系,城市地质调查也在全国率先实现全覆盖。依据地下空间资源开发现状和地质结构“软硬”两个方面条件对苏南都市圈城市地下空间资源进行分类,划分为宁镇丘陵岗地型、苏锡常平原型和长江中下游冲积平原型三种类型。不同类型城市地下空间资源开发的地质背景和城市需求不尽相同,需根据实际情况定制不同的地下空间调查、规划、建设、管理体系。城市地下空间资源地质调查作为城市地质调查工作的延伸,需要提出更高的要求。本文从城市地下空间资源地质调查精度和深度、多参数多尺度一体化建模、地下空间资源评价、多种地下资源协同利用、地质资料信息数据库与平台建设等方面提出对策建议,用于指导未来城市地下空间资源调查的工程实践,为地质调查成果支撑城市地下空间全生命周期发展提供借鉴意义。

underground space is a valuable natural resource. As a part of urban organism, it plays an important role in urban construction in the future. The development of urban underground space resources in southern Jiangsu metropolitan area is in a leading position in the country. A relatively perfect system has been formed in underground space planning and management, and urban geological survey has taken the lead in realizing full coverage in the country. According to the geological structure and socio-economic “soft and hard” conditions, the urban underground space resources in southern Jiangsu metropolitan area classified into three types: Ningzhen hilly land type, Suxi Changping prototype and alluvial flat prototype in the middle and lower reaches of the Yangtze River. The geological background and urban demand of underground space development in different types of cities are different. Different underground space investigation, planning, construction and management systems need to be customized according to the actual situation. As an extension of urban geological survey, the geological survey of urban underground space resources needs to put forward higher requirements. This paper puts forward corresponding countermeasures from the aspects of urban underground space resources geological survey accuracy and depth, multi parameter and multi-scale integrated modeling, underground space resources evaluation, collaborative utilization of multiple underground resources, construction of geological data information database and platform, which can be used to guide the engineering practice of urban underground space resources geological survey in the future, and provide reference significance for the geological survey results to support the whole life cycle development of urban underground space.