Conception of comprehensive utilization evaluation of urban underground space resources

To realize the safe development and management of underground space is an important part of China's overall territorial space governance system.Currently, the comprehensive evaluation of underground space resources in China is facing new challenges due to its shortcomings in the application of geological achievements, docking of territorial space planning and data sharing services.Problem lies in the lack of high precision of geological survey results and enough systematic, not implemented in the process of planning implementation management to make full use of the evaluation results, geological investigation results and space urgently needs to improve the use of information of alignment. As a result, the utilization of urban underground space resources is often "impossible to rely on", "no evidence to rely on" and "difficult to implement planning" for a long time.In view of these shortcomings, the concept of underground space resources investigation and comprehensive evaluation system- underground space planning and control system is proposed, that is, to develop and utilize urban underground space resources in a scientific and safe manner, a three-dimensional geological structure investigation should be carried out with planning and control as the guide, and a three-dimensional geological structure model of underground space resources should be constructed.Through comprehensive consideration of geological conditions, development and utilization status of underground space, underground emergency water source, protection of underground cultural relics and other factors, the underground space resource potential is systematically evaluated, and the comprehensive coordinated development and utilization control and evaluation system of various underground space resources is constructed.The study on the comprehensive development and utilization of underground space resources is of great significance to the expansion of new space for urbanization development, the opening up of new resources for urbanization construction, the construction of a territorial space governance system for the whole region, and the coordination of territorial space resource planning and management.