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多年来,我国的石材开采一直存在着劳动强度大、生产效率低、成荒率低的问题。就目前而言,我国的石材开采方法大致可分下列几种:①大锤劈裂法。其特点是机具简单、劳动强度大、生产效率低、块度小,很难形成一定的生产规模。②控制爆破法。由于岩石具有各向异性等特点,因此很难对爆破效果进行有效控制,常造成荒料隐裂纹的产生,导致板材率低(一般13平方米/立方米左右),且运输、施工均具一定危险性。③静态爆
For many years, stone extraction in China has always had the problems of large labor intensity, low production efficiency, and low rate of reclamation. At present, China’s stone mining methods can be roughly divided into the following categories: 1 hammer splitting method. It is characterized by simple machine tools, high labor intensity, low production efficiency, and small block sizes, and it is difficult to form a certain scale of production. 2 controlled blasting method. Due to the anisotropic characteristics of rocks, it is difficult to effectively control the blasting effect, which often results in the production of hidden cracks in the blocks, resulting in a low sheet rate (generally 13 square meters per cubic meter) and a certain degree of transportation and construction. Dangerous. 3 static explosion