化工矿物与加工2025，Vol.54Issue(9)：39-43,5.DOI:10.16283/j.cnki.hgkwyjg.2025.09.005
采动塌陷区下急倾斜不稳矿床采充分离采矿方法研究
Study on the mining method of mining and filling separation for steeply inclined unstable ore deposits in subsidence areas
摘要
Abstract
With the depletion of high-grade and easy-to-mine mineral resources in China,a large number of low-grade and difficult-to-mine deposits have been put into mining.Under the backdrop of low-carbon and high-efficiency mining,the mines are facing the production problems of tailings reservoir land acquisition and subsidence area manage-ment,which urgently need to improve the mining method to meet the needs of safe and efficient mining of difficult-to-mine deposits.This paper combined the mining conditions of Sandaogou Iron Mine and applied the low-carbon,safe,and efficient mining model for iron mine.It proposed the mining and filling separation method for efficient mining using surface tailings cemented filling collapse pit and underground sublevel caving method.At the same time,it used high-concentration tailings cemented paste filling that did not mud when encountering water,sand and stone flow hazard prevention and control technology using filling bulk materials with a thickness not less than the critical bulk height,and ore loss and impoverishment control technology for the footwall diversion and ore discharge to ensure that filling and mining operations did not interfere with each other.The new mining method has been fully applied to Sandaogou Iron Mine,achieving safe and efficient mining of unstable deposits under mining subsidence areas,and achieving significant safety,economic,and environmental benefits.关键词
采动塌陷区/不稳矿床/采充分离/尾砂充填/地表塌陷/采矿方法/低碳开采Key words
mining subsidence area/unstable deposits/mining and filling separation/tailings filling/ground subsi-dence/mining method/low carbon mining分类
矿业与冶金引用本文复制引用
李海英,任凤玉,曹建立,陈豁祥..采动塌陷区下急倾斜不稳矿床采充分离采矿方法研究[J].化工矿物与加工,2025,54(9):39-43,5.基金项目
国家自然科学基金重点项目(51534003) （51534003）
国家重点研发计划项目(2016YFC0801601). （2016YFC0801601）
