棉花坑矿井破碎矿体回采方案研究  

Research on Stoping Scheme of Broken Orebody in Mianhuakeng Mine

作　　者：秦旭忠 孙刚友 侯志永 谢国森 杨帆 李秦 宋丽霞 张德全 张煜晖 QIN Xuzhong;SUN Gangyou;HOU Zhiyong;XIE Guosen;YANG Fan;LI Qin;SONG Lixia;ZHANG Dequan;ZHANG Yuhui(China Nuclear Minging Science and Technology Corporation,CNNC,Beijing 101149,China;Shaoguan Jinyuan Uranium Co.,Ltd.,CNNC,Shaoguan 512329,China)

机构地区：[1]中核矿业科技集团有限公司,北京101149 [2]中核韶关锦原铀业有限公司,广东韶关512329

出　　处：《铀矿冶》2024年第3期25-34,共10页Uranium Mining and Metallurgy

摘　　要：针对棉花坑矿井的急倾斜破碎薄矿体,提出了无间柱分段深孔爆破连续采矿法。根据该方法的工艺特点提出了“倒台阶形”+上下向布孔分段连续回采、“正台阶形”+上向布孔分段连续回采和“正台阶形”+顶柱+上向布孔分段连续回采方案。通过GRA-AHP和云模型相结合的方式对3种回采方案进行了评价优选,得出“正台阶形”+顶柱+上向布孔分段连续回采方案相对安全、高效。研究结果为棉花坑矿井破碎矿体的开采提供了可行的技术方案。Aiming at the steeply sloping broken thin orebody in the Mianhuakeng mine,the continuous mining method of deep hole blasting without inter-pillar was proposed.According to the technological characteristics of the method,the"inverted step shape"+up and down hole layout continuous mining,"positive step shape"+upward hole layout continuous mining and"positive step shape"+top pillar+upward hole layout continuous mining were proposed.The GRA-AHP and cloud model were combined to evaluate and optimize the three mining schemes,and it was concluded that the scheme of"positive step shape"+top pillar+upward hole layout is relatively safe and efficient,which provides a feasible technical scheme for the mining of broken orebody in Mianhuakeng mine.

关 键 词：深孔爆破 急倾斜 破碎薄矿体 GRA-AHP 云模型 回采方案 

分 类 号：TD868[矿业工程—金属矿开采] TL212[矿业工程—矿山开采]