一、试验项目在除塵方法上,目前最有效的方法为湿式凿岩,但坑道作业均在高山,作业点高度分散,且不能长期固定于一点,因此湿式作业在设备和水源上均存在困难,不能及早全面解决。为此在防塵方法的试验上,我们按着土洋结合、以土为主、少花钱或不花钱办好事的原则以干式捕塵为主,试验了土制防 First, the pilot project In the dust removal method, the most effective method for the current wet rock drilling, but the tunnel operations are in high mountains, the job site is highly dispersed and can not be fixed at one point for a long time, so wet operation in the equipment and water are difficult, Can not be fully resolved as soon as possible. To this end in the test of the dustproof method, we follow the combination of earth and the soil, dominated by soil, the principle of less money or no money to do good things to dry catching dust-based, tested the indigenous defense