近十多年来,我国石材工业得到迅猛发展。但石材矿山建设大大滞后,尽管付出了很大代价,但成效甚少。不少矿山由地质部门做了详查或勘探,储委审批了地质报告,设计单位做了开采设计,但建后由于地质发生变化:有的风化层太厚,剥离剥不到底;有的在岩体中遇到断层破碎带或密集裂隙带而不能成荒,有的打开工作面后发现花色品种发生变化,或出现色线、石胆等缺陷,荒料率太低,块度太小。只要出现上述其中一种情况理,矿山便没有开采价值而被迫 In the past ten years, China’s stone industry has developed rapidly. However, the construction of stone mines has lagged behind. Despite paying a lot of money, little has been achieved. Many mines were scrutinized or explored by the geological department. The Reserve Committee approved the geological report. The design unit did the mining design. However, due to geological changes after the construction, some weathered beds are too thick and peeling is not complete; some are In the rock, a fault-broken zone or a dense fissure zone is encountered and no waste can be formed. Some open-face work finds that the color variety has changed, or defects such as color lines and stones have occurred. The block material rate is too low and the blockiness is too small. As long as one of the above situations arises, the mine will not be forced to exploit the value of