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在较深的独头巷道中、通风是快速掘进的重要一环。我们施工的巷道深度为340米开口为斜井深70米，净断面2.7米~2，每米支架棚子，顶扳透水，每个循环炸药消耗3—4公斤。选用设备：柴油发电机二台（50及30瓩），扇风机二台（JBT-51型5.5瓩及D3186型1瓩各一台）；使用风管为玻璃纤维导风管、直径300毫米。根据施工中存在的一些问题，认为要提高通风效果，主要关键
In the deeper single-headed tunnel, ventilation is an important part of fast tunneling. The depth of the roadway we constructed was 340m. The opening was 70m deep and the net section was 2.7m ~ 2. The shelves per meter were covered and the top was watered, consuming 3-4kg of explosives per cycle. Selection of equipment: two diesel generators (50 and 30 瓩), two fans (JBT-51 5.5 瓩 and D3186 1 瓩 each one); the use of duct for the glass fiber duct diameter of 300 mm. According to some problems in the construction, it is considered that the key to improving the ventilation effect is the key