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北皂煤矿在进入下组煤后，由于（煤）岩层的高流变和松软破碎，巷道变形破坏严重，阻碍安全生产的正常进行，巷道的合理支护形式选择迫在眉睫。经过广泛的工程调查和深入细致的矿压观测，通过分析，从围岩变形的机理对合理支护方式的选择进行了阐述。
After entering the lower group of coal, Bei soap coal mine due to the high rheological and soft crushing (coal) rock formations, serious deformation and destruction of the roadway, hinder the normal production safety, reasonable choice of roadway form of protection is imminent. After a wide range of engineering investigations and in-depth and meticulous pressure observation, through the analysis of the surrounding rock deformation mechanism of the reasonable support options are described.