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建筑工地的管沟、地下室、大直径挖孔桩桩孔常处于半封闭状态,通风不畅,在这些地方施工,要切记——建筑工地,特别是旧建筑物维修工程中,常有管沟、井坑、地下室,还有人工成孔的大直径桩桩孔等,他们经常处于半密闭状态,通风不畅。由于一些有机物的腐败分解,日积月累,产生和积累了窒息性气体,这些气体会让人窒息晕厥,甚至死亡。不幸的是,这类事故往往是一个人先在这种环境中倒下,其他人
Construction ditches, basements, large diameter hole digging pile holes are often in a semi-closed state, poor ventilation, construction in these areas, it is important to remember - construction sites, especially in the maintenance of old buildings, often ditches , Pit, basement, as well as man-made large diameter pile shaft hole, they are often in semi-airtight state, poor ventilation. Due to the decomposition of some organic matter corruption, over time, produce and accumulate asphyxia gas, these gases will cause suffocation syncope, or even death. Unfortunately, such accidents are often the first to fall in this environment, others