Study On The Surrounding Rock Stability Control Of Alternate Exterior Entry Layout Pattern

This paper to make using of the theoriestical and analysis, numerical simulation, similate material, the spot test method, on the condition of layer slicing face with alternate exterior entry,the surrounding rock stability control has been carried out systimuatically. Puts forward alternate exterior entry possible supporting form for have been put forward ,and supporting parameters have been defined. Using numerical simulation, supporting effects of alternate exterior entry with different supporting form and parameters have been analyzed.Meanwhile with the engineering case of WuYang coal Mine. Whole program of surrounding rock stability control for alternate exterior entry is put forward technical parameters are determined. Possibility and. rationality of the progame is analysed technically and economically.The progame of surrounding rock stability control of the alternate exterior entry not only solved the practical problem, but also can give a guid and to other mines using the same entry layout pattern .The progame added the new contents.to thecomplications surrounding rock condition of rock strata control.