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四川某煤矿两相邻对拉工作面错距巷内常出现瓦斯超限，用采场风网模拟计算和现场测风、测瓦斯实验相结合，得到超前对拉工作面进风从３６０ｍ３／ｍｉｎ调为３１０ｍ３／ｍｉｎ，滞后对拉工作面进风保持３６０ｍ３／ｍｉｎ的进风不变，可消除错距巷内瓦斯超限。计算和实验结果已用于实际供风
The gas overrun often occurs in the wrong-way lane between two adjacent pairs of pulling faces in a coal mine in Sichuan Province. Combining the simulation calculation of the wind farm net and the on-site wind measurement and gas testing, Transferred to 310m3 / min, lagging the work surface into the wind to maintain the same 360m3 / min into the wind, to eliminate the wrong lane gas over the limit. Calculations and experimental results have been used for actual wind supply