(1) The inclination angle of the ore body is about 30°~45°, and the inclination angle of the ore body is relatively stable; (2) The thickness of the ore body should be above the medium thickness (the ore body should not be less than twice the depth of the medium and deep hole W). (3) The upper body of the ore body and the surrounding rock are stable, the boundary between the top chassis and the ore body is clear, and the bottom plate is relatively smooth and smooth, and the stability of the bottom plate is not strict; (4) The ore body is required to be buried and the fault is small. <Advantages> (1) It is not necessary to open the funnel in the lower plate, thereby reducing the amount of mining work, and basically solving the deposit of the chassis; (2) Workers do not have to enter the mining area, and the operation safety is good; (3) Good ventilation conditions; <Disadvantages> (1) Explosive force transport only solves the mine ore transport, and the ore transport of 20-50% of the ore is still difficult to solve. (2) The amount of secondary blasting is small, and only after the funnel is emptied, the next blasting can be performed, and thus the number of blasting is large. (3) After each blasting of the stope, the pedestrian ladder in the rock drilling patio and the workbench are destroyed, requiring frequent maintenance, high labor intensity and large wood consumption. (4) Explosive force mining method When blasting, the amount of explosives used is large, so the roof, funnel and roadway are more destructive. (5) When the transportation distance is not selected properly, the effect is too big (too big or too small). Small Loader,4Tm Wheel Loader,4Tm Telescopic Loader,Side Tipping Bucket Loader Taian zhengtai construction machinery Co., Ltd , https://www.taztmachine.com
Second, the main advantages and disadvantages
First, the applicable conditions