Analysis of the Manifestation Law of Mining Pressure in Near Shallow Buried Coal Seam Working Face
In a complex mining environment,based on the high mining height working face of a near shallow buried coal seam in a certain mine,in order to do a good job in coal seam support,it is necessary to analyze the mining pressure law of the fully mechanized mining face.Therefore,based on the geological characteristics of the N1202 working face in the case,similar materials will be selected for physical model experiments,and experimental preparations and testing system design will be made.After analyzing the resistance and dynamic load coefficient of the support,the initial and periodic compression step distance of the working face,the resistance and dynamic load coefficient of the support can be obtained,providing data support for the safety support scheme.The actual monitoring of the mining pressure on the working face shows that the simulation results of the mining pressure pattern are similar to the measured results.
near shallow buried coal seamworking surfacelaw of mining pressure manifestation
NETL
NSTL
万方数据
