某深部磷矿首采区条带式胶结充填开采方案优选及试验  

Optimal Selection and Experiment of Strip Cemented Filling Mining Scheme for the First Mining Area of a Deep Phosphate Mine

作　　者：聂正 张电吉[1,2] 吝曼卿[1,2] 周春梅 NIE Zheng;ZHANG Dianji;LIN Manqing;ZHOU Chunmei(School of Resources and Safety Engineering,Wuhan Institute of Technology,Wuhan,Hubei 430074,China;Engineering Research Center of Ministry of Education for Phosphorus Resources Development and Utilization,Wuhan Institute of Technology,Wuhan,Hubei 430074,China;School of Civil Engineering and Architecture,Wuhan Institute of Technology,Wuhan,Hubei 430074,China)

机构地区：[1]武汉工程大学资源与安全工程学院,湖北武汉430074 [2]武汉工程大学磷资源开发利用教育部工程研究中心,湖北武汉430074 [3]武汉工程大学土木工程与建筑学院,湖北武汉430074

出　　处：《矿业研究与开发》2024年第6期10-18,共9页Mining Research and Development

基　　金：湖北省中央引导地方科技发展专项项目(2017ZYYD007);武汉工程大学研究生教育创新基金项目(CX2022593)。

摘　　要：为改善传统房柱采矿法开采深部磷矿回采率低、安全性差等问题,提出了条带式胶结充填采矿法,通过数值模拟的方法对比分析了4种回采方案下4种工况的塑性区、应力及位移变化,并根据数值模拟确定的结果在首采区进行开采试验。试验结果表明:综合考虑各方面因素,确定的最优回采方案为6 m×12 m,最优回采顺序为矿房“隔一采一”。条带式胶结充填采矿法在开采过程中地压稳定,施工安全性高;与传统房柱采矿法相比,条带式胶结充填采矿法每个条带采出矿石量提高了529 t,回采率提高了24.28个百分点,极大地改善了传统房柱采矿法低回采率造成的资源浪费问题,为企业提高了约13%的利润。研究结果可为同类型矿山提供一定借鉴。In order to improve the problems of low recovery rate and poor safety of deep phosphate rock mining by traditional room-and-pillar mining method,a strip cemented filling mining method was proposed.The plastic zone,stress and displacement changes of four working conditions under four mining schemes were compared and analyzed by numerical simulation.According to the results determined by numerical simulation,the mining test was carried out in the first mining area.The test results show that considering various factors comprehensively,the optimal mining scheme is determined to be 6 m×12m,and the optimal mining sequence is“mining one every other one”.The strip cemented filling mining method has stable ground pressure and high construction safety in the mining process.Compared with the traditional room-and-pillar mining method,the strip cemented filling mining method increases the amount of ore mined from each strip by 529t,and the recovery rate increases by 24.28percentage points,which greatly improves the resource waste caused by the low recovery rate of the traditional room-and-pillar mining method,and increases the profit of the enterprise by about 13%.The research results can provide some reference for the same type of mines.

关 键 词：条带式胶结充填采矿法 深部磷矿 回采方案 回采顺序 数值模拟 

分 类 号：TD853.34[矿业工程—金属矿开采]