排山楼金矿主井保安矿柱采场结构参数初判和回采数值模拟  

Preliminary determination of stope structural parameters and numerical simulation of mining for the main shaft security pillars in the Paishanlou Gold Mine

作　　者：柳宏儒[1] 李传迎 金长宇[3] Liu Hongru;Li Chuanying;Jin Changyu(Liaoning Zhongjin Gold Co.,Ltd.;Liaoning Paishanlou Gold Co.,Ltd.;Key Laboratory of Safe Mining of Deep Metal Mines(Ministry of Education),Northeastern University)

机构地区：[1]辽宁中金黄金有限责任公司 [2]辽宁排山楼黄金有限责任公司 [3]东北大学深部金属矿山安全开采教育部重点实验室

出　　处：《黄金》2025年第4期13-18,共6页Gold

基　　金：中央高校基本科研业务费专项基金项目(N2101041)。

摘　　要：近年来,受政策、矿山资源枯竭、深部资源开采难度大等因素的影响,中国黄金产量呈下降趋势,而上述因素同样也是目前大部分企业面临的难题。如何在政策允许范围内安全高效回收资源是企业亟须解决的问题。通过Mathews稳定性图解法并结合现场实际情况,对排山楼金矿上排矿区主井保安矿柱开采结构参数进行了初判,并利用Flac3D数值模拟的方法对保安矿柱内矿体安全回采可行性进行研究。数值模拟结果表明:保安矿柱范围内矿体安全回采具有可行性,回采造成的塑性区主要集中在采空区周围,回采区域与现有采空区间留设的间柱宽度以10~15 m为宜;回采会导致主井中下部产生一定变形,暂无应力集中现象,对主井的使用无大影响。研究结果为主井保安矿柱范围内T4矿体的开采提供了理论支撑,具有重要的实践意义。In recent years,China’s gold production has declined due to policy constraints,resource depletion,and challenges in deep mining,which are common issues faced by mostenterprises.Therefore,safely and efficiently recovering resources within policy limits has become a critical priority for enterprises.This study preliminarily determines the structural parameters for mining the main shaft security pillars in the Shangpai mining district of the Paishanlou Gold Mine using the Mathews stability graphical method based on field conditions.Flac3D numerical simulations were employed to evaluate the feasibility of safely recovering ore bodies within the security pillar.Results indicate that safe extraction is feasible:plastic zones induced by mining are mainly concentrated around the goaf,and 10-15 m width is recommended for pillars retained between the mining area and existing goafs.Mining causes minor deformation in the middle⁃lower sections of the main shaft without significant stress concentration,posing no major impact on shaft functionality.These findings provide theoretical support and practical guidance for mining the T4 orebody within the vertical shaft security pillar.

关 键 词：竖井 保安矿柱 残矿回收 采场结构参数 充填采矿 数值模拟 

分 类 号：TD853[矿业工程—金属矿开采]