Research On Development Potential And Rational Utilization Of Mine Water

China is a big mining country,with the rapid development of industrialization and urbanization,we are facing the urgent need for water resources and water pollution.As a kind of unconventional water resource,mine water was not taken seriously in the early years of coal mining,which not only caused serious waste,but also caused some pollution problems.Therefore,the research on the rational development and utilization potential of mine water resources can help alleviate the current water shortage and provide support for the sustainable development of social economyOn the basis of summarizing the present situation of exploitation and utilization of mine water resources at home and abroad,this paper takes yinxing no.1 well in jijia mine area of ningdong coal base as the research object,and systematically analyzes the water inflow of mine water,reasonable utilization plan of mine water and its exploitation and utilization potential when its coal output reaches the designed production scale.The main conclusions are:(1)By summarizing and analyzing the calculation methods of mine water inflow at home and abroad,the water inflow of silver star well is predicted by big well method,corridor method,analogy method,gray model method and field measurement fitting method respectively,and the applicable conditions of each calculation method are comprehensively analyzed.The prediction results of field measurement fitting method are adopted to predict the water inflow of silver star well is 6246m~3/d.(2)Collect and sort out the basic situation of 4Mt/a water usage of the feasibility design scale of silver star no.1 well and the actual situation of 3.21mt/a water usage.Analyze the water usage parameters,water withdrawal index and water-saving potential of silver star no.1well,re-examine the reasonable utilization plan of mine water resources,and determine that the total water consumption in the mining area is 702,100 m~3/a,and the total water withdrawal is 911,200 m~3/a.Among them,the mine drainage water is 764,200 m~3/a,after deducting the unusable amount of 179,700 m~3/a,the available mine drainage water is 584,500 m~3/a.(3)By studying the related concepts and calculation methods of mine water resources,it is calculated that the usable amount of mine water in silver star no.1 well is 1.5768million m~3/a,deducting the mine water used by itself and the developed usable amount of 584500m~3/a,and the exploitable potential of mine water in silver star no.1 well is 9923000 m~3/a.The results show that the mine gushing water can not only meet the needs of production and living in the mining area,but also has great potential for development and utilization and can be supplied to surrounding water users.