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以无轨凿岩台车、装载机和自卸汽车为主的地下工程无轨开挖设备,在水电站隧洞工程开挖施工中,因为进度快、施工布置简单和适应性强等特点,在国内外被广泛采用。我局引进先进的地下工程无轨开挖设备在鲁布革、漫湾和丛化电站的地下厂房和大型隧洞开挖中,已经获得了很大的经济效益。无轨开挖的主要问题是柴油机的废气污染,如果解决不好,不仅影响生产效率,还会危害施工人员的身体健康。对此,我局曾有两种不同意见:一是以柴油机废气净化为主,通风为辅。另一种是依靠强力通风。
Trackless drilling rigs, loaders and dump trucks mainly underground engineering trackless excavation equipment in the hydropower station tunnel construction excavation, because of the progress of the construction layout is simple and adaptable and so on, at home and abroad broadly used. I Bureau of the introduction of advanced underground engineering trackless excavation equipment in the Lubuge, Manwan and Conghua hydropower station underground powerhouse and large tunnel excavation, has gained great economic benefits. The main problem of trackless excavation is the exhaust pollution of diesel engine. If the solution is not good, it will not only affect the production efficiency, but also endanger the health of construction workers. In this regard, our bureau had two different opinions: First, diesel engine exhaust purification, supplemented by ventilation. The other is to rely on strong ventilation.