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利用有限元法分析了综放采场瓦斯巷和回风巷或运输巷采用“吕”字形布置后的卸压机理，得到了上部瓦斯巷宽度对下部回风巷或运输巷卸压效果的定量关系，为改革综放采场巷道布置并提高瓦斯巷抽放效果提供了新的设计思路和可靠依据．
Using the finite element method to analyze the pressure relief mechanism of the gas lane and return airway or transportation lane of the fully mechanized caving workface with “L” shape arrangement, the effect of the width of the upper gas lane on the pressure relief of the lower return airway or transportation lane is obtained The quantitative relationship provides a new design idea and reliable basis for reforming the layout of fully mechanized caving face and improving the gas drainage effect.