Roof Control Technology and Mining Pressure Analysis in Mining Areas
In order to improve the stability of the roof control in the mining area,avoid phenomena such as roof leakage,wall fragmentation,and deformation of the top and bottom plates,a series of roof control technologies were adopted,that is,the natural collapse method was applied to manage the roof,end support,and advanced support roof,and the end and advanced support were combined with anti fall and anti fall devices.After analyzing the working resistance of the support,the pressure levels are as follows:maximum in the middle,second in the lower part,and minimum in the upper part.The selection of the support is reasonable.From the situation of coal wall spalling,the higher the working resistance,the lower the probability of coal wall spalling occurring,indicating good support performance.
roof controlnatural collapse methodadvance support
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