Identification and Evaluation of Urban Underground Space Construction Area

Abstract Underground space is an important resource for achieving sustainable development in urban areas. Before developing and utilizing underground space resources, a scientific evaluation is required. To analyze the suitability of urban underground space development in Jinan, this paper conducts a comprehensive analysis of the geological environment, surface environment, economic development, and geological hazards in the study area. A suitability evaluation model is constructed using fuzzy mathematics and improved analytic hierarchy process (AHP), leading to the establishment of an evaluation system for the suitability of underground space development. The indicators are overlaid and calculated according to their weights by adopting the ArcGIS platform. The results show that the model is able to accurately reflect the suitability of underground space and provide scientific theoretical support for actual engineering construction. The area suitable for construction accounts for approximately 29.2% of the entire evaluation area, and the relatively suitable area accounts for 29.1% of the entire evaluation area. The areas with poor suitability for construction account for 27.8% of the entire evaluation area, and the unsuitable area for construction accounts for 13.9% of the entire evaluation area.