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1.前言 准确掌握巷道的风阻是进行通风网路解算的基本前提。为此,过去曾就风阻问题进行过多方面的研究,并将具有代表性形状巷道的风阻值载于教科书中。但是,因实际的巷道条件多种多样,书上的数值不够充分,所以即使在现今,多数矿井仍必须通过实测求算风阻。特别是日本,现有的多数矿井的巷道网路都较复杂,在进行日常通风管理和研究非常时期的通风控制时,都要求能正确地进行通风网路解算,从这个意义上来说,也增加了实测求算风阻的必要性。
1. Foreword Accurately grasp the wind resistance of the roadway is the basic premise of the ventilation network solution. To this end, many studies have been conducted on wind resistance problems in the past, and wind resistance values of typical shaped roadways are contained in textbooks. However, due to the wide variety of actual road conditions and inadequate numerical values on the books, even today, most mines still have to calculate wind resistance by actual measurement. Especially in Japan, most of the existing mine roadway networks are complicated. In the sense that daily ventilation management and ventilation control during the extraordinary period are required, it is required that the ventilation network be correctly solved. In this sense, too Increase the need to calculate the wind resistance measured.