根据现场实测和理论研究的成果,用机械模拟实验台模拟了三种典型的采场顶板运动形式。得出了老顶岩梁在煤壁前,后方及附近裂断过程中的了“层运动——支承压力——支零压力增量”的关系。 According to the field measurement and theoretical research results, three typical stope roof movement modes were simulated by mechanical simulation bench. The relationship between “bed movement - bearing pressure - branch zero pressure increase” was obtained in the process of fracturing of the old roof rock beam in front of, behind and near the coal wall.