突出过程中常伴随极强的动力效应，产生的突出冲击波会造成一定的人员伤亡，甚至破坏风门等通风设施，进而扩大事故灾害范围。为了更贴近现场实际，根据现场实际突出事故现象，建立了煤与瓦斯突出动力学模型；基于激波管理论，阐释了巷道内突出冲击波形成机制，指出突出瞬间喷向巷道空间的高速瓦斯气流压缩空气形成突出冲击波，且突出瓦斯气流加速阶段释放的瓦斯膨胀能决定突出冲击波的强度；建立了基于突出孔洞瓦斯压力、突出口直径的突出冲击波超压峰值预测模型。利用煤与瓦斯突出冲击动力效应及致灾特征模拟试验系统，开展了不同瓦斯压力、装煤量条件下的突出动力效应模拟试验。试验结果表明：突出模拟试验过程中冲击波超压的实测值与理论值一致，验证了理论模型的正确性。且装煤量相同时，突出冲击波超压随瓦斯压力的增大而增大；而当瓦斯压力相同时，随装煤量的增大，冲击波超压变化较小。相同瓦斯压力条件下，突出口径会影响冲击波超压的大小。突出口径较小时，突出瞬间释放的瓦斯膨胀能较小，导致冲击波超压值较小。突出冲击波强度$p'_2 $和冲击波超压$varDelta p'$与突出口和巷道直径之比s₁/s₂呈线性增加关系。因此，瓦斯压力和突出口径是影响突出冲击波强度的主要因素。此外，突出模拟试验过程中，突出冲击波超压在模拟巷道内随传播距离不断衰减。通过分析巷道内冲击波超压峰值数据，发现公式y=aΔP_maxx^−1/2能够较好地描述巷道内冲击波超压衰减规律。突出冲击波传播至管道末端，由于障碍物反射作用形成二次冲击波。该研究可为突出矿井科学、合理地设计和布置安全防护措施提供指导。

The coal and gas outburst process is frequently accompanied by strong dynamic effects, and the generating outburst shock wave will cause certain casualties, even damage ventilation facilities such as air doors, thus expanding the scope of accidents. In order to be close to the actual situation, a dynamic model of coal and gas outburst is established according to the phenomenon of on-site outburst process; Based on the theory of aerodynamics, the formation mechanism of one-dimensional shock wave in confined space is discussed. On this basis, the formation mechanism of outburst shock wave in the simulated roadway is clarified. It is pointed out that the high-speed gas flow sprayed into the roadway at the moment of outburst compresses air to form outburst shock wave, and the strength of outburst shock wave is determined by the gas expansion energy released during the acceleration phase of outburst gas flow; The prediction model of overpressure peak value of outburst shock wave based on gas pressure of outburst hole and diameter of outburst mouth is established. Using the simulation experiment system of coal and gas outburst impact dynamic effect and disaster characteristics, the simulation experiments of outburst dynamic effect under different gas pressure and coal loading were carried out. The experimental results show that the measured value of shock wave overpressure in the process of outburst simulation experiment is consistent with the theoretical value, which verifies the correctness of the theoretical model. When the coal loading is the same, the overpressure of outburst shock wave increases with the gas pressure; When the gas pressure is the same, with the increase of coal loading, the shock wave overpressure changes little. Under the same gas pressure, the diameter of outburst mouth will affect the magnitude of shock wave overpressure. When the diameter of outburst is small, the gas expansion energy released at the moment of outburst is small, resulting in small overpressure value of shock wave. Outburst shock wave strength $p'_2 $ and shock wave overpressure $varDelta p' $ has a linear relationship with the ratio s₁/s₂ of the diameter of the outburst and the roadway. Therefore, gas pressure and outburst diameter are the main factors affecting the intensity of outburst shock wave. In addition, in the process of outburst simulation experiment, the overpressure of outburst shock wave in the simulated roadway is attenuated with the propagation distance. By analyzing the peak value data of shock wave overpressure in the roadway, it is found that the formula y=aΔP_maxx^−1/2 can better describe the attenuation law of shock wave overpressure in the roadway. The outburst shock wave propagates to the end of the roadway and forms a secondary shock wave due to the reflection of obstacles. This study can provide guidance for scientific and rational design and arrangement of safety protection measures in outburst mines.