Abstract:The special investigation project of Guangzhou rail transit line 12 carries out the investigation of coal mine goaf along the project by means of geophysical exploration and micromotion, and basically finds out the distribution characteristics of coal seams along the project, basically explores the distribution, spatial form, filling situation and overburden type of goaf along the project, basically finds out the buried depth, specific height and development status of caving zone, fracture zone and bending zone caused by goaf, preliminarily evaluates the stability of goaf and its suitability for urban construction, and puts forward feasible Suggestions for construction. Based on this, this paper analyzes the urban geological hazards in the mine goaf of Jiahe Mining area in Guangzhou, which enriches the theory of urban geological hazards and provides guidance or reference for disaster management in the urban goaf.
