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大瑶山隧道是全断面机械化掘进,内燃机具装碴运输的长大双线隧道,通风是一重大关键问题。过去国内隧道施工通风的管道大都用钢板,镀锌铁皮或橡胶来制作,直径小,数量也不大,所以对通风管的管材,制作工艺,现场安装的难易都不是什么大问题。可是长大隧道的通风管情况就不同;主要是数量多,直径大,还须考虑负压,风管接头,管道运输和现场安装的难易等问题,所以对风管的新型管材,制作工艺,堆集、
Dayaoshan tunnel is a full-mechanized tunneling mechanized, internal combustion equipment ballast transport growth of two-lane tunnel, ventilation is a major issue. In the past, most domestic tunnel construction ventilation pipes were made of steel plate, galvanized sheet metal or rubber with small diameter and small quantity. Therefore, it is not a big problem for ventilation pipe, production process and on-site installation difficulty. However, the situation of the ventilation pipes of the long tunnels is different; mainly the number of large diameter, large diameter, but also to consider the negative pressure, duct fittings, pipelines and site installation difficult and so on, so the new duct material, production process , Piled up,