Based on the cutting experiments used by cutter tooth and point-attack pick on the press and cutting simulation test table, the deformation and failure process of coal body are studied by the method of white light digital speckle correlation.

• 摘要采用白光数字散斑相关测定方法，在压力机上，在截割模拟实验台上分别对煤试件进行刀齿、镐齿的截割实验，研究被截割煤体的变形破坏过程。