喷射混凝土产生的粉尘就其化学成分而言,游离二氧化硅含量,以及颗粒大小与凿岩产生的粉尘均不完全一样。因此从事喷射混凝土施工作业人员得矽肺病的可能性是很小的,而可能得肺气肿、鼻炎、水泥尘肺病等。但这种病症与矽肺病比较发病时间长,且没有矽肺病那样严重。只要加强预防,采取行之有效的措施也是可以避免的。减少喷射混凝土的粉尘,应采用综合性的防尘措施。梅山铁矿为了降低喷射混凝土施工粉 The dust generated by shotcrete is not exactly the same as the chemical composition, free silica content, and particle size and dust produced by rock drilling. Therefore, the possibility of silicosis in shotcrete construction workers is very small, and may cause emphysema, rhinitis, cement pneumoconiosis and so on. However, this condition has a longer duration than silicosis and is not as serious as silicosis. As long as prevention is strengthened, effective measures can be avoided. To reduce dust from shotcrete, comprehensive dust protection measures should be adopted. Meishan Iron Mine in order to reduce shotcrete construction powder