煤与瓦斯突出是采动应力等多重因素作用下，煤层发生破裂并伴随瓦斯迅速释放的复杂现象。深入剖析突出过程中应力、孔隙压力及温度的动态变化，对于揭示煤与瓦斯突出的本质机理、制定有效的煤矿突出防治措施具有重要意义。为了研究采动应力变化对煤与瓦斯突出过程的诱导机制，结合平煤十二矿戊组煤与己组煤部分区域上下叠加关系造成的煤体支承压力异常现象，利用多场耦合煤岩体动力灾害防控技术模拟系统开展了煤与瓦斯突出模拟试验，试验过程中详细记录了气压与温度的动态变化，并深入探讨了动荷载持续作用对煤与瓦斯突出过程气体压力与温度的影响。结果表明：采动应力持续加载造成应力集中现象加剧，引起煤体孔隙裂缝面积减小，内部孔隙压力升高，促进了煤与瓦斯的流动和传输，可能提前诱导煤与瓦斯突出。高频动荷载会使孔隙压力上升更快，当达到爆破临界压力导致突出事件发生，大量气体迅速释放，气体压力急剧下降。在温度演化方面，初始注气阶段由于气体分子间相互作用力增强、气体压缩过程中做功转化为热能以及气体的逐渐释放，煤体内部温度呈现上升趋势。随着进入吸附平衡阶段，内部气体压力趋于稳定，煤体内部的热量逐渐向外环境散失，温度略有下降。在注气诱导突出阶段，动荷载和气体注入的共同作用使腔体内部煤体温度再次升高。而在诱发突出阶段，由于气体的快速释放，温度大幅度下降。在煤矿生产中，制定控制煤与瓦斯突出事故的措施时，必须充分考虑采动应力对突出过程的影响。

The phenomenon of coal and gas outburst, triggered by factors including mining-induced stress, manifests as coal seam rupture and rapid gas expulsion. Elucidating the changes in stress, pore pressure, and temperature during this process holds paramount importance for understanding the outburst mechanism and devising preventive measures. To investigate the role of mining-induced stress fluctuations in initiating coal and gas outburst, the abnormal coal support stress was focused on, observed in the Pingdingshan No.12 mine where the Wu and Ji coal seams overlap. Utilizing a multi-field coupling coal and rock dynamic disaster prevention and control technology simulation system, outburst experiments were conducted on coal specimens. Variations in pore pressure and temperature were tracked by these experiments, analyzing the impact of sustained dynamic loading on gas pressure and temperature during the outburst process. The experimental findings reveal that the continuous application of mining-induced stress leads to stress concentration, narrowing the surface area of coal pores and cracks, which in turn elevates the internal pore pressure within the coal, facilitating the flow and propagation of coal and gas, potentially precipitating premature coal and gas outburst. High-frequency dynamic loading accelerates the rise in pore pressure, ultimately triggering a gas outburst once the critical blasting pressure is attained, leading to a rapid depletion of gas pressure. Regarding temperature fluctuations, during the initial injection stage, several factors contribute to an elevation in coal's internal temperature, including enhanced intermolecular forces among gas molecules, the conversion of compressed gas work into heat energy, and the gradual release of gas. Subsequently, during the adsorption equilibrium phase, the internal gas pressure stabilizes, and the heat within the coal gradually dissipates into the surrounding environment, resulting in a modest temperature decrease. However, during the injection-induced outburst phase, dynamic loading and gas injection cause a surge in the internal temperature of the coal cavity. Finally, during the induced outburst phase, the abrupt release of gas leads to a significant temperature drop. Therefore, in devising the prevention and control measures for coal and gas outburst accidents in mining operations, the influence of mining-induced stress must be taken into account.