By influencing of the tunnel pressure in Yuanzhuang Coal Mine,the end frame of the main belt conveyor became inclination and deformation.It made belt run slantingly and wear away seriously.

• 袁庄煤矿主运带式输送机机尾架,由于受巷道压力的影响,造成机尾架倾斜变形,使输送带严重跑偏,磨损严重。