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为研究近距离下保护层开采卸压瓦斯运移规律,采用COMSOL数值模拟和现场实测方法,研究了保护层开采后上覆岩层垂直应力的变化规律、被保护层瓦斯压力分布规律、透气性系数变化规律和卸压范围。
In order to study the law of pressure relief gas migration in the mining of protective layer at near distance, the variation law of vertical stress of overlying strata after protective layer mining was studied by numerical simulation and field measurement method. The gas pressure distribution, gas permeability coefficient Variation and pressure relief range.