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在隧道工程施工过程中,如果遇到瓦斯煤层赋存高压力或者隧道需要穿越岩性较为软弱的煤系地层时,隧道内部可能出现瓦斯气体,这些隧道都是瓦斯隧道,瓦斯隧道与瓦斯的数量、出现时间和瓦斯存在时间的长短无关,隧道中发生瓦斯事故的情况并不是很常见,但是一旦出现瓦斯事故将会带来极大的危害,造成人员伤亡和重大财产损失等。我国隧道施工人员一般是社会劳工,缺少应有的瓦斯隧道施工经验及相关的安全风险意识,因此针对瓦斯隧道施工必须加强必要的安全措施,降低施工安全风险。
During the tunnel construction, if there is high pressure in the coal seams or when the tunnel needs to cross the relatively weak lithologic coal strata, there may be gas inside the tunnel, which is the number of gas tunnels, gas tunnels and gas It is not uncommon to see the occurrence of gas accidents in the tunnel. However, once a gas accident occurs, it will bring great harm, causing casualties and significant property losses. China’s tunnel construction workers are generally social workers, the lack of appropriate gas tunnel construction experience and related safety risk awareness, so for gas tunnel construction must strengthen the necessary safety measures to reduce the construction safety risk.