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为了做好鑛山的技术经济定额,提高劳动生产率,合理地选择并使用(?)岩工具和消耗材料,为各鑛山开展岩石统一分类工作找出经验,1955年6月东北铜铅锌鑛劳局在第三铜鑛进行了岩石统一分类的试验工作。经过三个月的试验,该鑛初步摸索到了(?)岩爆破性试验方法与经验,虽然在试验中还存在不少问题,没有获得适当解决,但是对于正在进行岩石统一分类工作的鑛山,仍有一定帮助,因此现将该鑛的试验情况发表如下,希望读者提出改进意见。
In order to do a good job in technical and economic quotas of mines, increase labor productivity, select and use rock tools and consumable materials reasonably, and find out the experience in carrying out the unified classification of rocks in mines. In June 1955, Bureau of the third copper in rock unified classification test work. After three months of trial, the mine initially explored the test methods and experience of rock burst test. Although there are still many problems in the trial and have not been properly solved, for mines that are carrying out the unified classification of rocks, There is still some help, so now the mine test results are published below, I hope the reader put forward suggestions for improvement.