Study On The Behavior Law Of Mine Pressure Management Strategy Of Cun Caota The Second Mine 31 Coal

It is very important for mine safety management to study the occurrence regularity of mine pressure and the change of overburden strata in 31101 fully mechanized working face and 31202 fully mechanized working face.Especially in 31 coal mine pressure management,there is no relevant information to the underground pressure,reference,the research on the rules of the mine pressure is of great significance,for the future design of adjacent working face,mining,mine pressure management provides a theoretical basis.By using theoretical analysis,FLAC3 D numerical simulation and field measurement,31 coal mining face and 31 coal mining face were studied by using theoretical analysis,FLAC3 D numerical simulation and field measurement.Numerical simulation aspect: firstly constructed by using FLAC3 D numerical simulation model,obtained in the process of working face advancing,fluctuation condition,the influences of coal mining and analysis that the floor of 22116 working face destruction;After that,the vertical stress field of the fully-mechanized mining field under different driving distance was obtained.Field measurement aspects: at the end of the initial normal mining,mining,mining as well as a special geological structure,overlying coal mine pressure appear law of different stages,such as coal face are summarized in the process of stoping to compressive strength,pressure interval,to pressure,and the working face support as well as the matching equipment type selection,system analysis.In this paper,we study the process of using all data,images from the production practice,in 2 inch grass tower mine geological conditions,mine pressure management countermeasures through practice and achieved good economic results.