分段矿房嗣后充填采矿采场结构参数优化研究  

Optimization Study on Stope Structure Parameters of Sublevel Open Stoping with Backfill

作　　者：郭进平[1] 晏承园 张雯[1] 李角群[1] 吴世平[2] 白银[2] GUOJinping;YAN Chengyuan;ZHANG Wen;LI Jiaoqun;WU Shiping;BAI Yin(School of Resource Engineering,Xi’an University of Architecture and Technology,Xi’an,Shaanxi 710055,China;Sinosteel Anhui Liutangfang Mining Limited Company,Lu’an,Anhui 237471,China)

机构地区：[1]西安建筑科技大学资源工程学院,陕西西安710055 [2]中钢集团安徽刘塘坊矿业有限公司,安徽六安市237471

出　　处：《矿业研究与开发》2021年第10期1-7,共7页Mining Research and Development

基　　金：国家自然科学基金项目(51904220)。

摘　　要：针对刘塘坊铁矿现有采矿方法存在人员、设备在采场顶板下作业不安全的问题,推荐了分段矿房嗣后充填采矿方法,并应用Mathews图解法对采场结构参数初选。在初选结果的基础上,按照采场跨度取50 m、40 m、30 m和间柱宽度取6 m、7 m、8 m得到9个组合方案,应用FLAC3D软件对9个采场结构方案进行采场结构稳定性分析;最后,从安全和经济角度对9个组合方案进行综合比较,确定最优的采场结构参数为:采场长度40 m,采场宽度20 m,间柱厚度7 m。The existing mining method in Liutangfang iron mine has the problem of unsafe operation of personnel and equipment under the stope roof. In view of the problem, sublevel open stoping with backfill was recommended, and the Mathews graphic method was applied to the primary selection of stope structural parameters. On the basis of the primary selection results, nine combination schemes with stope span of 50 m, 40 m and 30 m and pillar width of 6 m, 7 m and 8 m were obtained, and FLAC3 D software was applied to analyze the stope structure stability of nine schemes. Finally, the nine combination schemes were comprehensively compared from the perspective of safety and economy. It was determined that the optimal stope structure parameters were stope length of 40 m, stope width of 20 m and pillar thickness of 7 m.

关 键 词：分段矿房嗣后充填采矿法 采场结构参数 Mathews图解法 数值模拟 

分 类 号：TD853.362[矿业工程—金属矿开采]