Study On The Type Classification And Hydrological Structure Model Of Mine Water Hazards In China

With the expansion of China's coal resources to the western mining areas and the deep mining of the eastern mining areas in recent years,the complicated mining conditions have led to the emergence of various new problems and new features,which are different from the existing traditional understanding.Based on a large amount of data such as the State Administration of Safety Supervision,the network and the literature,in addition to classifying and counting 619 water damage accidents between 2000 and 2019,the characteristics of these accidents such as basic types,geographical distribution characteristics,casualties and the nature of the accident coal mine are also analyzed.In particular,for the statistics of the basic characteristics of 263 accidents with detailed information,the statistical rules of various types of accidents have been obtained.According to the current water damage situation,based on the mine hydrogeological structure,the background,basis and classification principle of the comprehensive classification scheme of water hazard types are proposed,and the existing types of water damage accidents are divided into 7 major categories,22 subcategories and 48 types.Firstly,combined with the relative positions and combinations of coal seams and aquifers,water-filled water sources and water-filled channels in various accidents,the hydrogeological structure patterns of 48 types of water hazards were preliminarily proposed.Secondly,according to the typical accident background,the typical characteristics and influencing factors of each type of water damage are clarified;Finally the key factors in the risk assessment of 48 types of water hazards were initially proposed.The research of the thesis summarizes some new problems and new features in the hydrogeological work of mines in China in recent years,and proposes a new method for the classification of integrated water hazards and the key factors for evaluation.The research results can provide certain guiding significance for various types of water hazard assessment work.