|
|
|
| Study on industrial square overburden mining scheme in resource depleted mines |
| Zhao Xiaolong1, Wang Zhongxian2, Liu Shuai2 |
| 1. Jizhong Energy Fengfeng Group Corporation Ltd, Handan 056000, China; 2. Handan Ruida Engineering Design Corporation Ltd, Handan 056000, China |
|
|
|
|
Abstract Niu'erzhuang mine is scheduled to be closed in 2021, and the mine closure will lead to the waste of 3.348 million t of recoverable resources in the industrial square coal column. In order to guarantee the safe mining of the remaining reserves of the adjacent Dashe Mine (there is a water crossing between the two mines), it is still necessary to retain the mine drainage system, which will still generate drainage costs of more than 48 million RMB per year. In order to avoid the waste of coal resources and ensure the safe mining of the remaining reserves of the Dashe Mine, a study on the overburdened mining plan of the industrial plaza was proposed, and in this paper, comparative arguments were made from "shaft layout" and "mining technology" respectively, the final decision was to adopt the "new safety slant shaft + full mining without filling scheme". The analysis results showed that this solution can recover more than 3 million tons of coal resources, extend the mine life by 6.1 a, and improve the safety of production in the mine and adjacent mines.
|
|
|
|
|
|
| 1 ] 常春勤. 峰峰五矿工业广场保护煤柱开采设计[ J ]. 矿山测量，2003（ 4 ）：59 - 62.
[ 2 ] 骆兴鸽. 厚煤层条件下井筒保护煤柱开采技术研究[ J ]. 矿山测量，2020（ 1 ）：52 - 54.
[ 3 ] 王延友. 资源枯竭型矿井煤柱回收技术及应用[ J ]. 山东煤炭科技，2015（ 2 ）：16 - 17.
[ 4 ] 张红果，张丹丹. 煤炭资源枯竭型矿井的现状及生存对策[ J ]. 内蒙古煤炭经济，2018（ 2 ）：95 - 97.
[ 5 ] 王改伟，刘国卫. 矿井工业广场保护煤柱设计[ J ]. 内蒙古煤炭经济，2019（ 12 ）：151，161.
[ 6 ] 王 猛，牛誉贺，代连朋，等. 似膏体充填开采工业广场保护煤柱后地表移动变形分析[ J ]. 国地质灾害与防治学报，2015（ 4 ）：47 - 53.
[ 7 ] 刘大超. 平煤七矿工业广场下煤柱开采技术方案研究[ D ]. 中
国优秀硕士学位论文全文数据库，2016（ 12 ）：1 - 105.
[ 8 ] 张连忠. 荆各庄矿工业广场煤柱开采方案研究[ J ]. 煤炭与化工，2016（ 1 ）：58 - 60，63.
[ 9 ] 张 欣. 膏体充填法回收工业广场煤柱地表变形分析[ J ]. 煤炭技术，2011（ 4 ）：78 - 80.
[ 10 ] 宋宏伟，刘 刚. 井巷工程[ M ]. 北京：煤炭工业出版社，2007. |
|
|
|
