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由上海梅山集团（南京）矿业有限公司组织，马鞍山矿山研究院、青岛建筑工程学院、鞍山冶金设计研究院等单位参加的，冶金部“八五”期间重点科研项目———梅山铁矿无底柱分段崩落法加大结构参数的研究成果鉴定会于１９９９年１０月９日在上海梅山集团（南京）矿业有限公司召
By the Shanghai Meishan Group (Nanjing) Mining Co., Ltd. Organization, Ma On Shan Institute of Mining, Qingdao Institute of Construction Engineering, Anshan Metallurgical Design and Research Institute and other units to participate in the Ministry of Metallurgical “Eighth” key scientific research projects during the Meishan Iron Bottomless Column Caving method to increase structural parameters of the research results identified in October 9, 1999 in Shanghai Meishan Group (Nanjing) Mining Co., Ltd. called