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通过模型巷道模拟试验,探讨了无底柱崩落采矿法采场进路中附壁射流的风流结构,包括边界特性、压力、轴心速度、断面上速度、流量、动量、射程等变化规律。认为根据巷道断面选择相应的风筒直径,可在生产条件下利用附壁射流实现采场进路工作面通风。
Through the model tunnel simulation test, the airflow structure of the attached jets in the stope approach of the pillarless caving mining method is discussed, including the boundary characteristics, pressure, axial velocity, velocity, flow rate, momentum and range of the section. It is considered that the corresponding duct diameter can be selected according to the section of the roadway and the use of the wall-mounted jets can be used to ventilate the working face of the stope in the production conditions.