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大理石、花岗石在工程建筑中具有多种用途,随着我国社会主义建设的不断发展,国内各的工程的需要量日益增多。同时我国的大理石、花岗石还出口国外,很受国际市场的欢迎。这种石料开采的特点是要求从山上成块状采下来,以便于加工板材或其他成型产品。所以它的开采方法与一般矿石爆破开采是不同的。过去我国开采这种石料多为手工开采或半机械化开采。从山上开采下1米~3成型石料一个工人大约需要一个月左右时间,劳动强度大,
Marble and granite have many purposes in engineering construction. With the continuous development of socialist construction in our country, the demand of various domestic projects is increasing day by day. At the same time, our country marble, granite also exported abroad, very popular in the international market. This type of stone mining is characterized by the lumps taken from the mountains to facilitate the processing of sheet metal or other molded products. Therefore, its mining method and general ore blasting mining is different. In the past, China’s mining of such stone mostly manual mining or semi-mechanized mining. Mining from the mountain 1 m ~ 3 molding stone A worker takes about a month or so time, labor-intensive,