The basic structure and development situation of coal seam water disaster in China
Coal seam water disaster is one of the main geological disasters against the safe and efficient development of coal resources in China.Based on the collection and analysis of coal seam water disaster accidents in the past 20 years,five main stages of coal seam water disaster were extracted,including the initiation of"hidden water bursting hazard factors",the finalization of"three elements"of coal seam water disaster,multi-factor coupling disaster,breaking through the critical state to stimulate the disaster and the emergence of negative effects after the disaster.According to the independent attribute characteristics of each stage,the coal seam water disaster was summarized into three main categories:roof water disaster,floor water disaster and goaf water disaster,as well as 11 subcategories such as high potential energy gushing(leaching)water in thick bedrock aquifer,karst collapse column induced water inrush,and horizontal space lateral water inrush,etc.The causes of different types of coal seam water disasters,the mechanism of development and development process,and the characteristics of disaster occurrence were expounded.Finally,the future development situation of coal seam water disaster in China is briefly prospected and analyzed.
mine water hazard controlcoal seam hazardhidden hazard factorshazard mechanismactive protection
NETL
NSTL
万方数据
