新集一矿无煤柱开采采空区群漏风检测及防治技术  

Leakage detection and prevention technology for goaf areas in pillarless coal mining at Xinji No. 1 Mine

作　　者：吴祖玉 唐明云[1,2] 高世强 骆鑫 方领 WU Zuyu;TANG Mingyun;GAO Shiqiang;LUO Xin;FANG Ling(National Key Laboratory of Safe Mining of Deep Coal and Environmental Protection,Anhui University of Science&Technology,Huainan 232001,China;School of Safety Science and Engineering,Anhui University of Science&Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学深部煤炭安全开采与环境保护全国重点实验室,安徽淮南232001 [2]安徽理工大学安全科学与工程学院,安徽淮南232001

出　　处：《工矿自动化》2025年第4期160-168,共9页Journal Of Mine Automation

基　　金：煤炭安全精准开采国家地方联合工程研究中心开放基金资助项目(EC2023009)。

摘　　要：针对无煤柱开采Y型通风工作面采空区与相邻采空区漏风自燃问题,采用能位测定和示踪技术相结合的方法,对新集一矿360606工作面采空区群各密闭墙漏风进行检测。结果表明:3608(06)采区进风系统的能位高于回风系统,360606工作面采空区与上覆采空区和其相邻采空区均存在漏风通道,-550 m西翼胶带石门(北)密闭墙是主要漏风源,-415 m西大巷密闭墙、-415 m辅助回风上山密闭墙、-415 m井底车场绕道密闭墙、360608运输巷密闭墙、360606回风隅角和360606工作面柔模墙取气孔为漏风汇。根据360606工作面及其与相邻采空区漏风通道的特点,提出注氮灌浆堵漏、设置风帘等防治措施。应用结果表明:针对360606工作面采空区漏风进行综合防治后,沿空留巷与回风侧采空区CO及O_2浓度均处于正常范围,有效控制了360606工作面采空区漏风,保障了360606工作面的安全生产。To address the issues of leakage and spontaneous combustion in goaf areas of the Y-type ventilation working face pillarless extraction,as well as the adjacent old goaf areas,a combined method of energy potential measurement and tracer technology was used to detect air leakage in the sealing walls of the goaf areas of the 360606 working face at Xinji No.1 Mine.The results showed that the energy potential of the intake system in the 3608(06)mining area was higher than that of the return air system.There were leakage channels between the 360606 working face goaf,the overlying goaf,and adjacent goaf areas.The sealing wall of the−550 m West Wing Belt Stone Gate(North)was the main source of air leakage.The leakage sink occurred at the−415 m West Main Tunnel sealing wall,the−415 m Auxiliary Return Air Mountain sealing wall,the−415 m Mine Bottom Car Track Detour sealing wall,the 360608 Transport Tunnel sealing wall,the 360606 Return Air Corner,and the air inlet holes of the 360606 working face flexible model wall.Based on the characteristics of the 360606 working face and its leakage channels with adjacent goaf areas,measures such as nitrogen injection grouting for sealing and the installation of wind curtains were proposed.Application results indicate that after comprehensive prevention and control measures were implemented for the leakage in the 360606 working face goaf,the CO and O2 concentrations in the air in the retention roadway and return air side goaf areas remained within the normal range,effectively controlling the leakage and ensuring safe production in the 360606 working face.

关 键 词：煤自燃 采空区漏风 漏风防治 能位测定 示踪技术 漏风源 漏风汇 

分 类 号：TD752.2[矿业工程—矿井通风与安全]