CAJ | 학술논문

为了对U+I型通风方式下的风排瓦斯效率进行研究，本文以某煤矿为实际工程背景，运用数值模拟软件对U+I型通风方式中不同的内错尾巷高度下，即分别为顶板上方2m、3m、4m、5m时，该通风系统的排瓦斯效果进行了模拟研究，得到了该通风系统的最优解，即对U+I型通风系统进行了优化。模拟结果表明：尾巷布置于顶板上方4 m时，尾巷的风排瓦斯率达到71.74%，相比尾巷布置于顶板上方2 m时提高了15.21%，同时，巷道的排瓦斯总量达到6.44 m3/min，此时，通风系统的排瓦斯效果达到最佳。因此，该矿使用U+I型通风系统时，内错尾巷宜布置在顶板上方4m左右。
위료대U+I형통풍방식하적풍배와사효솔진행연구，본문이모매광위실제공정배경，운용수치모의연건대U+I형통풍방식중불동적내착미항고도하，즉분별위정판상방2m、3m、4m、5m시，해통풍계통적배와사효과진행료모의연구，득도료해통풍계통적최우해，즉대U+I형통풍계통진행료우화。모의결과표명：미항포치우정판상방4 m시，미항적풍배와사솔체도71.74%，상비미항포치우정판상방2 m시제고료15.21%，동시，항도적배와사총량체도6.44 m3/min，차시，통풍계통적배와사효과체도최가。인차，해광사용U+I형통풍계통시，내착미항의포치재정판상방4m좌우。
In order to research gas drainage efficiency of U and I ventilation system, a coal mine is as a actual project background, the gas drainage effect of ventilation system is simulated and studied to different height of inner interlocked tail roadway that above roof is 2 m, 3 m, 4 m, 5 m by using numerical simulation software, obtains the optimal solution of the ventilation system, namely U + I type ventilation system is optimized. The simulation results show that the gas drainage rate of tail roadway reaches 71.74 percent when the tail roadway arranged in the roof above 4 m, compares with the tail roadway arranges in the roof above 2 m, gas drainage rate improves 15.21 percent, at the same time the total gas drainage reaches 6.44 m3/min, at this time, the effect of exhaust gas ventilation system achieves the best. Therefore, when uses U + I type ventilation system, inner interlocked tail roadway should be arranged in the roof above about 4 m.