Granular coal multi-point lateral confinement crushing experiment device and method

The invention relates to the technical field of coal and gas outburst prediction index research, and particularly discloses a granular coal multi-point lateral confinement crushing experiment device and method.The granular coal multi-point lateral confinement crushing experiment device comprises an experiment rack, a granular coal multi-point lateral confinement clamping device is arranged at the lower end of the experiment rack, and a gas pressure control system is connected between the experiment rack and the granular coal multi-point lateral confinement clamping device; and the experiment rack is also connected with a test system through a line. The method can be used for distinguishing the influence of the number of lateral confinement points of underground granular coal under a certain gas pressure on the crushing specific work of the granular coal, underground outburst risk prediction is achieved, a basis is provided for outburst risk, and an experimental basis and a theoretical basis are provided for r