为了开采厚度0.4～1.2m、倾角35～90°的软、中硬及硬煤煤层(对于硬煤用钻爆法松裂),乌克兰科学院地球物理研究所提出了一种新型正面采煤机组(在工作面全长和全高上作用于煤壁的煤体)(图1)。我们认为,这种方法(可称为立体法)比以前所有使用机械破煤的方法产量更高。 In order to exploit the soft, medium and hard coal seams with a thickness of 0.4 ~ 1.2m and the inclination angle of 35 ~ 90 ° (for loose drilling and blasting of hard coal), Institute of Geophysics of the Academy of Sciences of Ukraine proposed a new type of positive coal winning unit The coal body that acts on the coal wall over the full length and height of the working face) (Figure 1). In our opinion, this method (which can be called stereo method) yields more than all previous methods of using mechanical coal-breaking.