我国大理石、花岗石、玉石等贵重石材贮量丰富,品种繁多。开采历史悠久。但是,我国石材开采的生产方式十分落后。目前,只有一些大理石矿采用钢丝绳锯外,大多是用“锤钎打眼,放炮崩山”的方法开采石材荒料。这不仅严重破坏资源,成荒料率低(一般为10—20%),而且开出的荒料质差块小,成板材率低,经济效益很差。如何改进我国石材开采的落后方式?据有 China’s marble, granite, jade and other precious stones are rich in reserves and variety. Mining has a long history. However, the production method of stone mining in China is very backward. At present, only some marble mines use steel wire rope saws. Most of them use the method of hammer drills and drill holes to blast stone and extract the stone blocks. This not only severely damages the resources, but also results in a low rate of production (usually 10-20%). Moreover, the quality of blocks opened out is small, the rate of sheet formation is low, and economic efficiency is very poor. How to improve the backward way of stone mining in China?