Abstract：In order to study the process and mechanism of coal and gas outbursts caused by dynamic loads in complex stress environment in deep mining condition, simulated experimental equipment for coal and gas outburst under dynamic and static loading conditions was developed independently by Henan Polytechnic University. The phenomena of coal and gas outburst under the coupling of static and dynamic loads were simulated, coal and gas outburst experiments were carried out under the condition of gas adsorption, and the influences of gas adsorption on coal and gas outburst were studied in depth. The results showed that the ability of non-gas desorption and non-coal pillar to induce coal and gas outburst was stronger than that of gas desorption and coal pillar under a same impact load. And the outburst strength of non-coal pillar was bigger than that of coal pillar.The research results had important practical significance for the study of coal seam gas outburst mechanism.

Keyword：static and dynamic loads;gas-containing coal;coal and gas outburst;dynamic phenomena;outburst strength;