在 Kaiyang 磷矿,严肃环境并且安全问题被大规模采矿活动在过去的 40 年里引起。这些问题包括采矿沉淀,低恢复比率,在支柱的太多死了的矿石,和磷石膏的污染。采矿沉淀掉进四个范畴:弄弯的地面和方山,地面裂缝和倒塌洞, spalling 和 eboulement,斜坡幻灯片并且爬。对待采矿沉淀的措施被提出:发现并且管理放弃的采矿场,选择合适的 backfilling 材料(phosphogypsum 混合物) ,避免混乱采矿操作,并且对待高速公路斜坡,优化采矿方法(切并且充满的采矿方法) 。这些调查和工程处理方法被相信能在 Kaiyang 磷矿贡献矿石和持续开发的安全抽取。
In Kaiyang Phosphorus Mine, serious environmental and safety problems are caused by large scale mining activities in the past 40 years. These problems include mining subsidence, low recovery ratio, too much dead ore in pillars, and pollution of phosphorus gypsum. Mining subsidence falls into four categories: curved ground and mesa, ground cracks and collapse hole, spalling and eboulement, slope slide and creeping. Measures to treat the mining subsidence were put forward: finding out and managing abandoned stopes, optimizing mining method (cut and fill mining method), selecting proper backfilling materials (phosphogypsum mixtures), avoiding disorder mining operation, and treating highway slopes. These investigations and engineering treatment methods are believed to be able to contribute to the safety extraction of ore and sustainable development in Kaiyang Phosphorus Mine.