题目

英语翻译
The uniaxial compressive strength of compounded phosphorus gypsum after 28 d of curing
period was tested to be more than 1Mpa．Phosphorus gypsum can be used as materials for the backfill of stope．By comparison and
numerical simulation,cut and fill mining method with middle—deep drilling holes and ore transportation by blasting force was
selected as the optimum mining method in Kaiyang Phosphorus Mine．

提问时间：2021-03-23

答案

单轴抗压强度复合磷石膏固化后28天
期间被验出超过1Mpa.Phosphorus石膏可用于stope.By比较回填的材料和
数值模拟,挖填采矿与中等深钻孔和爆破力矿石运输方法
选定为开阳磷矿开采的最佳方法.