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武山中梁渠在石方爆破时,为了节省炸药,在黑火药中掺入50%左右的碎石渣,经试用结果,爆炸力比纯用黑火药还高,不但节约了炸药,且提高了工效。当地掺用的碎石渣有两种:一种是紫色砂质页岩,当地群众称为红碘石,为泥质砂质结构,呈层状多节理,可打成小页片,由多水高岭土、石英、水云母,氢氧化铁等组成,质地较软,硬度为5.5。另一种是石英岩,群众称白火石,顏色灰白,非常坚硬,有脂肪光泽,由石英、长石等组成,硬度为7.0。中梁渠要爆破的岩石大部为黏土胶结砾岩,爆破
In the case of blasting in stonework, in order to save explosives, Wuzhong Zhongliangqu made about 50% of the gravel mixed with black gunpowder. Through the trial results, the blasting force was higher than pure black gunpowder, not only saving explosives but also increasing Efficacy. There are two kinds of locally mixed gravel slag: one is purple sandy shale, the local people known as red iodine, is a muddy sandy structure, layered multi-node, can be labeled as small pieces, from more Water kaolin, quartz, water mica, iron hydroxide and other components, the texture is soft, hardness 5.5. The other is quartzite, the crowd said white flint, gray color, very hard, fat shiny, composed of quartz, feldspar, hardness of 7.0. Most of the rock to be demolished in the Liangqu Canal is clay-bound conglomerate, which is demolished