Research and Application of High-efficiency Drift Backfill Mining Method in Gently Inclined Broken Orebody
Received date: 2020-12-18
Revised date: 2021-05-28
Online published: 2022-03-07
The orebody in the north area of the -496 m middle section of the No.1 orebody in Dayingezhuang gold mine is a typical gently inclined thin to medium thick orebody，which has the characteristics of small dip angle，large ground pressure and broken orebody.Aiming at the first seam，the point pillar upward flat-back cut and fill method was used to mining the orebody，and the exposed area of the chamber is large，making it vulnerable to collapse.Even if more point pillars were done，poor mining security was still threatening the production safety，and there are shortcomings such as poor operation conditions，low production efficiency and high rate of ore loss.In order to ensure the safety of stope operation，realize high-efficiency production and reduce the ore loss，the small size upward drift backfill mining method was proposed.This method is proposed in consideration of the mining technical conditions，mining status and development needs of Dayingezhuang gold mine，combined with the mining experience and development trend of similar gold mines in Jiaodong Peninsula.Some key problems such as mining technology，blasting technology and roof filling were optimized and improved，and the expected effect was achieved.The industrial test shows that under the condition of the same drilling time and the drilling length are basically the same，the production capacity of the panel is 372 t/d and the monthly ore output is 11 000 t，and the comprehensive ore production capacity is basically the same as the original mining method.Unit explosive consumption was only 0.26 kg/t，28% lower than the original mining method.The ore loss rate is only 5.7%，62% lower than the original mining method，recovery has been significantly increased.By using cemented fills instead of concrete seperation wall，the construction period is shortened from 5.5 days to 2.5 days，effectively solving the problem of drift stope replacement.The new mining method has the benefits of safe and efficient production and meets the requirements of technical and economic indicators.The research results of the new mining method can be used to guide the mine production and provide technical base for the production target of reaching 5 000 t/d.At the same time，it can be used for reference by other similar mines with remarkable economic and social benefits.
Hongwei ZHANG , Fuxing ZHANG , Sheng SUN , Zhengcheng GUO . Research and Application of High-efficiency Drift Backfill Mining Method in Gently Inclined Broken Orebody[J]. Gold Science and Technology, 2021 , 29(6) : 899 -907 . DOI: 10.11872/j.issn.1005-2518.2021.06.222
| null | Cao Yingli， Qin Xiuhe， Zhang Ruizhong， al et，2012.Research and application of mining method of horizontal stratified entrance filling of tailing in Xiadian gold mine［J］.Gold Science and Technology，20（2）：62-66. |
| null | Dong Jinkui，2015.Dynamic Control and Stabiligy Analysis of Gentle Dip and Medium Thickness Orebody in Jiaojia Gold Mine［D］.Shenyang：Northeastern University. |
| null | Feng X T， Hudson J，2004.The ways ahead for rock engineering design methodologies［J］.International Journal of Rock Me-chanics and Mining Sciences，41（2）：255-273. |
| null | Feng X T， Hudson J.Rock Engineering Design［M］. London：CRC Press，2011：322-341. |
| null | Jin C Y， Yang C X， Fang D， al et，2015.Study on the failure mechanism of basalts with columnar joints in the unloading process on the basis of an experimental cavity［J］.Rock Mechanics and Rock Engineering，48（3）：1275-1288. |
| null | Lai Wei， Guo Qinqiang， Liu Xiaosheng， al et，2020.Upward drift filling mining method for unstable and gently inclined thin to medium thick ore body［J］.Nonferrous Metals（Mine Section），72（4）：29-32，47. |
| null | Li Jiang， Jiang Lei， Wu Feng， al et，2015.Stability analysis and parameter optimization of deep stope in Dayingezhuang gold mine［J］.Gold，36（4）：43-45，58. |
| null | Li Shupeng， Jiang Lei， Zhang Junpeng，2016.Application of mechanized upward horizontal slicing method in Dayingezhuang gold mine［J］.Gold，37（8）：43-46. |
| null | Liu Dong， Shao Anlin， Jin Changyu， al et，2019.Numerical model building for broken ore body and optimization of stope structural parameters［J］.Journal of Central South Uni-versity（Science and Technology），50（2）：437-444. |
| null | Liu Mingquan， Li Xiuchen， Jiang Guojian， al et，2009.Evolution and optimization of mining method in Dayingezhuang gold mine［J］.Metal Mine，（Supp.1）：215-218，222. |
| null | Liu Tao， Gao Longtao， Sui Yongle， al et，2011.The mining method of broken orebody in Hubazhuang gold mine，Shandong Province［J］.Gold Science and Technology，19（5）：29-32. |
| null | Ning Yulin， Hu Shouquan， Liang Chao， al et，2014. Optimized research on advanced height of ore-body with broken hanging wall under upward slicing stoping with backfilling［J］.Mining Research and Development，34（4）：4-7. |
| null | Saki F， Dehghani H， Shokri B J， al et，2020.Determination of the most appropriate tools of multi-criteria decision analysis for underground mining method selection——A case study［J］. Arabian Journal of Geosciences，13（23）：1-20. |
| null | Tang Lizhong， Deng Lifan， Jian Yinghua，2016.Study on the optimization of structural parameters of sublevel open stopping with subsequent backfilling mining［J］.Gold Science and Technology，24（2）：8-13. |
| null | Vongpaisal S， Li G， Pakalnis R， al et，2011.New development of expert system module for a decision-making on mine stope stability in underground blasthole mining operations［J］.International Journal of Mining，Reclamation and Environment，25（1）：41-51. |
| null | Wang Zhiyuan， Zhang Wenru， Liu Qianyong， al et，2018.Research and practice on safe and efficient mining of orebody under complex conditions［J］.Mining Research and Development，38（5）：10-12. |
| null | Wu Feng， Li Jiang， Liu Lu， al et，2013.Study on mining technology of thick，large and gently inclined fractured orebody in Dayingezhuang gold mine［J］.Modern Mining，29（11）：147-148，151. |
| null | Yang Ning， Yin Xiangang， Lin Weixing， al et，2020.In-vein upward horizontal slicing and filling method［J］.Mining Research and Development，40（5）：11-14. |
| null | Yang Ying， Wu Aixiang， Yin Shenghua， al et，2016.Upward drift stoping with backfill for the gently inclined orebody with the thickness from thin to medium thick under the river［J］.Mining Research and Development，36（3）：1-4. |
| null | Yang Yong， Cao Xueyong， Zhang Haitao，2010.Research of the mining method of the broken orebody on the north limb of Jiaojia gold mine，Shandong Province［J］.Gold Science and Technology，18（2）：51-52. |
| null | Xu Heng， Wang Yiming， Wu Aixiang， al et，2016.Upward drift paste backfill mining technique in the gently inclined and broken ore deposit［J］.Metal Mine，45（8）：12-18. |
| null | Zhou Zonghong，2006.Research on Low-dilution and Loss Sublevel Caving of Inclined Medium-thick Orebody in Xiadian Gold Mine［D］.Shenyang：Northeastern University. |
| null | Zhu Heling，2014.Soft Broken-complex Orebody Mining Technology Optimization and Process Control Research［D］.Changsha：Central South University. |
| null | 曹英莉，秦秀合，张瑞忠，等，2012.夏甸金矿水平分层进路式尾砂充填采矿法的研究与应用［J］.黄金科学技术，20（2）： 62-66. |
| null | 董金奎，2015.焦家金矿破碎矿体高效开采稳定性分析及动态调控研究［D］.沈阳：东北大学. |
| null | 赖伟，郭勤强，柳小胜，等，2020.不稳固缓倾斜薄至中厚矿体上向进路充填采矿法［J］.有色金属（矿山部分），72（4）：29-32，47. |
| null | 李江，姜磊，吴锋，等，2015.大尹格庄金矿深部采场稳定性分析与参数优化［J］.黄金，36（4）：43-45，58. |
| null | 李树鹏，姜磊，张君鹏，2016.盘区机械化上向水平分层充填采矿法在大尹格庄金矿的应用［J］.黄金，37（8）：43-46. |
| null | 刘冬，邵安林，金长宇，等，2019.地下破碎矿体数值计算模型的构建及采场结构参数优化［J］.中南大学学报（自然科学版），50（2）：437-444. |
| null | 刘明泉，李秀臣，江国建，等，2009.大尹格庄金矿采矿方法的沿革及优化［J］.金属矿山，（增1）：215-218，222. |
| null | 刘涛，高龙涛，隋永乐，等，2011.山东胡八庄金矿围岩破碎矿体采矿方法［J］.黄金科学技术，19（5）：29-32. |
| null | 甯瑜琳，扈守全，梁超，等，2014.上盘破碎矿体盘区上向分层充填采矿法回采超前高度优化研究［J］.矿业研究与开发，34（4）：4-7. |
| null | 唐礼忠，邓丽凡，翦英骅，2016.分段空场嗣后充填采矿法采场结构参数优化研究［J］.黄金科学技术，24（2）：8-13. |
| null | 王志远，张文如，刘乾勇，等，2018.复杂条件下矿体安全高效开采研究与实践［J］.矿业研究与开发，38（5）：10-12. |
| null | 吴锋，李江，刘路，等，2013.大尹格庄金矿厚大缓倾斜破碎矿体开采技术研究［J］.现代矿业，29（11）：147-148，151. |
| null | 杨宁，尹贤刚，林卫星，等，2020.脉内上向水平分层充填采矿法［J］.矿业研究与开发，40（5）：11-14. |
| null | 杨莹，吴爱祥，尹升华，等，2016.河流下缓倾斜薄至中厚矿体上向进路充填采矿法［J］.矿业研究与开发，36（3）：1-4. |
| null | 杨勇，曹学勇，张海涛，2010.山东焦家金矿北翼破碎矿体采矿方法研究［J］.黄金科学技术，18（2）：51-52. |
| null | 徐恒，王贻明，吴爱祥，等，2016.缓倾斜破碎矿床上向进路膏体充填采矿技术［J］.金属矿山，45（8）：12-18. |
| null | 周宗红，2006.夏甸金矿倾斜中厚矿体低贫损分段崩落法研究［D］.沈阳：东北大学. |
| null | 朱和玲，2014.松软破碎型复杂矿体开采技术优化与过程控制研究［D］.长沙：中南大学. |
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