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通风方式存在的问题隧道施工通风一般分为压入式、抽出式、混合式等三种型式,这是不少工程技术人员所熟悉的。但是,通过深入施工现场,笔者发现,有相当一部分入(包括有的技术人员)把三种通风方式看得过于简单,片面地认为:通风机往洞内送风即是压入式;通风机往洞外抽风即是抽出式;同时有通风机送风和抽风的即是混合式。从而不考虑各种通风方式的具体要
Ventilation problems Tunnel construction ventilation is generally divided into the press-in, draw-out type, mixed type, and other three types, which is a lot of engineering and technical personnel are familiar with. However, through in-depth construction site, I found that a considerable part of (including some technical staff) to the three ventilation methods too simplistic, one-sided view: the ventilation fan to the hole is the press-in; fan Ventilation to the hole that is drawn out; the same time ventilation and ventilation fan that is hybrid. So do not consider the specific needs of a variety of ventilation