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起爆技术的改进,有可能使用35毫米的药包。可是,在煤矿中使用,规程中有一定限制。法国目前规程规定,根据起爆技术的不同,炮孔的装药量限制在1～2公斤。为了确定这种规定的正确性,在有瓦斯的矿井中,于石灰岩巷道掘进头进行了试验。通过试验,即使用长装药点燃时,也不危险。不加填塞物长砲孔长0.5～3米,在破坏的堆石上,用0.5～2米装药面进行垂直爆破。当然,过长的装药会增加不爆的可能
Detonation technology improvements, it is possible to use 35 mm kits. However, there are some restrictions in the use of coal mines. According to the current regulations of France, the charge of blasting holes is limited to 1 ~ 2kg according to the detonating technique. In order to determine the correctness of such provisions, tests have been carried out on limestone roadheading heads in gas-bearing mines. Through the test, even with long charge ignition, it is not dangerous. Without stuffing Long hole length 0.5 to 3 meters, in the destruction of rockfill, with 0.5 to 2 meters loaded surface for vertical blasting. Of course, too long charge will increase the possibility of non-explosive