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新的煤矿安全规程第105条规定:“设计井巷断面时,必须通过经济风速计算”。井巷经济风速的概念,在以往的文献资料中尚未见到。探求其物理意义应该是:在井巷取得经济风速时其掘进及维护费用与通风电力费用之和取得最小值。因此它是考虑通风井巷的经济效益的重要参数。这条新规定说明,在进行井巷断面设计时不仅要考虑其技术上的合理性(主要是满足运输、通风的需要),技术上的可能性(即要求断面小于施工技术允许的最大断面),还必须考虑其经济上的合理
The new coal mine safety regulations Article 105 states: “The design of roadway section, must be calculated by economic wind speed.” Economic concept of economic wind tunnel, in the literature has not been seen in the past. To explore its physical significance should be: when the economic and wind tunnel to obtain economic wind tunneling and maintenance costs and the minimum cost of ventilation and electricity. Therefore, it is an important parameter to consider the economic benefits of ventilation shaft. This new regulation shows that it is technically possible not only to consider the technical rationality (mainly to meet the needs of transportation and ventilation) in the design of roadway sections (that is, the required section is smaller than the maximum section permitted by construction technology) , It must also consider its economic rationality