Study On Strata Mechanical Structure And Support Adaptability Of Shallow Seam

Base on summing up other's research, take example for Shendong Mining Area, the strata moving and surface damage is described impersonally. Base on it, the damage character and mechanism of strata are studied. The strata moving character in different embedding depth, strata thickness and sand seam thickness are compared by numerical analysis method. the support-strata relationship and strata moving law are described, and the correlation of effect ingredient is analyzed. Combining key stratum theory, the method of powered support setting pressure in shallow seam mining face is advanced. The adaptability of powered support is studied too. Finally, take example for Wanli Mine, above conclusions have been validated.