煤与瓦斯突出是煤矿最严重的动力灾害之一，利用瓦斯水合固化技术降低煤体中瓦斯压力及其梯度，能减少煤与瓦斯突出事故发生的概率。为探究驱动力对煤介质中CH₄水合物生长动力学影响规律，利用瓦斯水合物生长动力学实验系统，开展了3种驱动力条件下煤介质中瓦斯水合物生长动力学实验研究，讨论了驱动力对煤介质中瓦斯水合物合成过程气体消耗量、生长速率等参数的影响。结果表明：同一粒径范围内，驱动力增加，各粒径范围水合物的成核时间并不完全遵循随之缩短的规律，煤介质CH₄水合物成核具有一定随机性；合成过程中出现多次成核现象；煤介质中CH₄水合物的气体消耗量随驱动力的增加而增大；在温度、粒径不变条件下，驱动力增加，可提高水合物的生长速率，且驱动力对合成初期平均生长速率影响更为显著。

Coal and gas outburst is one of the most serious kinetic disasters in coal mines, and the use of gas hydrate curing technology to reduce the gas pressure and its gradient in the coal body can reduce the probability of coal and gas outburst accidents. In order to investigate the influence of driving force on the growth kinetics of CH₄ hydrate in coal medium, the experimental study on the growth kinetics of gas hydrate in coal medium under three driving force conditions was carried out by using the experimental system of gas hydrate growth kinetics, and the influence of the driving force on the parameters such as gas consumption and growth rate during the synthesis process of gas hydrate in coal medium was discussed. The results show that: within the same particle size range, the nucleation time of hydrate in each particle size range does not completely follow the law of subsequent shortening when the driving force is increased, and the nucleation of CH₄ hydrate in coal medium has a certain degree of randomness; the phenomenon of multiple nucleation occurs in the synthesis process; the gas consumption of CH₄ hydrate in the coal medium increases with the increase of the driving force; the growth rate of gas hydrate in coal medium is increased with the increase of the driving force, and the growth rate of gas hydrate in coal medium is improved with the increase of driving force under the condition of unchanged temperature and particle size. The effect of driving force on the average growth rate at the early stage of synthesis is more significant.