根据大倾角煤层采场矿压显现特点,对采场顶板岩层的运动、破坏形式进行了研究。提出了大倾角条件下老顶岩层在运动中易于形成倾斜砌体结构板大结构,直接顶岩层则因上段冒落歼石充填,在采场中下段形成砌体梁小结构,并探讨了中下段小结构平衡的极限条件和结构失稳形式。 According to the characteristics of underground pressure in stope coal seam with large angle, the movement and destruction form of roof strata in stope are studied. In the condition of large dip angle, the old roof strata tend to form large structure of inclined masonry slab during the movement. The direct roof strata are filled with foul stone due to the upper part of the stope, and the small structure of the masonry beam is formed in the lower section of the stope. Lower limit of the structural equilibrium and structural instability of the form.