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[1]高科,张瑶,石连增,等.岩块尺度对采空区煤自燃区域的影响研究*[J].中国安全生产科学技术,2024,20(6):126-132.[doi:10.11731/j.issn.1673-193x.2024.06.017]
　GAO Ke,ZHANG Yao,SHI Lianzeng,et al.Study on the influence of rock block scale on coal spontaneous combustion area in goaf[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2024,20(6):126-132.[doi:10.11731/j.issn.1673-193x.2024.06.017]
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岩块尺度对采空区煤自燃区域的影响研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
20
期数:
2024年6期
页码:
126-132
栏目:
职业安全卫生管理与技术
出版日期:
2024-06-30

文章信息/Info

Title:
Study on the influence of rock block scale on coal spontaneous combustion area in goaf
文章编号:
1673-193X(2024)-06-0126-07
作者:
高科; 张瑶; 石连增; 李启文; 刘泽毅; 刘玉姣
（1.辽宁工程技术大学 安全科学与工程学院，辽宁 葫芦岛 125105；
2.辽宁工程技术大学 矿山热动力灾害与防治教育部重点实验室，辽宁 葫芦岛 125105）
Author(s):
GAO Ke;  ZHANG Yao;  SHI Lianzeng;  LI Qiwen;  LIU Zeyi;  LIU Yujiao
(1.College of Safety Science and Engineering,Liaoning Technical University,Huludao Liaoning 125105,China;
2.Key Laboratory of Mine Thermodynamic Disasters and Control of Ministry of Education,Liaoning Technical University,Huludao Liaoning 125105,China)
关键词:
岩块尺度; 采空区; 氧化带; 遗煤自燃; 数值模拟
Keywords:
rock block scale;  goaf;  oxidation zone;  residual coal spontaneous combustion;  numerical simulation
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2024.06.017
文献标志码:
-
摘要:
为探究综放采空区岩块尺度对煤自然发火的影响，采用Fluent软件数值模拟不同直径岩块条件下采空区的煤自燃规律，分析采空区氧浓度场和风速场，分别以氧气体积分数和风速为指标，确定采空区氧化带面积并以二场叠加场作为采空区煤自燃危险区划分标准，研究煤自燃危险区域与岩块直径的关系。研究结果表明：当岩块直径由0增加到10 m时，以氧气体积分数为指标，氧化带宽度变小，面积由5 563.84 m2减至2 602.69 m2；以风速为指标，氧化带面积由3 376.60 m2减至1 262.95 m2；将2种指标确定的氧化带进行叠加得到煤自燃危险区，随着岩块直径的增加，其面积由1 854.04 m2减至552.91 m2，煤自燃危险区最大宽度由20.40 m缩减至9.06 m。研究结果可为采空区煤自燃发火区域的确定提供参考。
Abstract:
In order to explore the influence of rock block scale on the spontaneous combustion of coal in the fully-mechanized goaf,the Fluent software was used to numerically simulate the spontaneous combustion law of coal in the goaf under different diameters of rock block,and the oxygen concentration filed air velocity field in the goaf were analyzed.The oxygen volume fraction and air velocity were respectively taken as the index,then the oxidation zone area of goaf was determined and the two-field superimposed field was used as the standard for dividing the coal spontaneous combustion hazardous zone in the goaf,and the relationship between the coal spontaneous combustion hazardous zone and the rock block diameter was studied.The results show that when the diameter of rock block increases from 0 to 10 m,the width of oxidation zone decreases when the oxygen volume fraction is used as the index,and the area decreases from 5 563.84 m2 to 2 602.69 m2.Taking the air velocity as the index,the area of oxidation zone decreases from 3 376.60 m2 to 1 262.95 m2.The oxidation zone determined by the two indexes is superimposed to obtain the coal spontaneous combustion hazardous zone,and with the increase of rock block diameter,its area decreases from 1 854.04 m2 to 552.91 m2,and its maximum width decreases from 20.40 m to 9.06 m.The research results can provide reference for the determination of the coal spontaneous combustion ignition area in the goaf.

参考文献/References:

［1］冯玉凤,徐志远,王毅.“两带”渗透率分布模型应用及渗透率规律研究［J］.中国安全生产科学技术,2023,19(3):59-66. FENG Yufeng,XU Zhiyuan,WANG Yi.Application of permeability distribution model of “two belts” andresearch on permeability law ［J］.Journal of Safety Science and Technology,2023,19(3):59-66.
［2］丁广骧,程远平.采场风流参数计算数学模型和数值计算方法［J］.中国矿业大学学报,1990,19(4):31-38. DING Guangxiang,CHENG Yuanping.The mathematical model and method of calculating airflow parameters on longwall face［J］.Journal of China University of Mining & Technology,1990,19(4):31-38.
［3］钱鸣高,许家林.覆岩采动裂隙分布的“O”形圈特征研究［J］.煤炭学报,1998(5):20-23. QIAN Minggao,XU Jialin.Study on the“O-shape” circle distribution characteristics of mining-induced fractures in the overlaying strata ［J］.Journal of China Coal Society,1998(5):20-23.
［4］陈鹏,张浪,邹东起.基于“O”形圈理论的采空区三维渗透率分布研究［J］.矿业安全与环保,2015,42(5):38-41. CHEN Peng,ZHANG Lang,ZOU Dongqi.Study on three-dimensional distribution of permeability in gob based on O-shape circle theory［J］.Mining Safety & Environmental Protection,2015,42(5):38-41.
［5］刘剑.采空区自然发火数学模型及其应用研究［D］.沈阳.东北大学,1999.
［6］刘剑,黄伯轩.用三维渗流分析采场气体流动状态［J］.阜新矿业学院学报(自然科学版),1991(3):20-23. LIU Jian,HUANG Boxuan.Analysis ofthe flowing statement of air in workfield by means of three-dimentional permeating theory［J］.Journal of Liaoning Technical University(Natural Science),1991(3):20-23.
［7］李树刚.综放面采空区岩体碎胀特性分析［J］.陕西煤炭技术,1996(4):19-22. LI Shugang.Analysis of rock mass fragmentation and swelling characteristics in goaf of fully mechanized face ［J］.Shaanxi Coal,1996(4):19-22.
［8］李树刚,钱鸣高.综放采空区冒落特征及瓦斯流态［J］.矿山压力与顶板管理,1997(Z1):79-81，233. LI Shugang,QIAN Minggao.Falling characteristics and gas flow pattern in fully mechanized goaf ［J］.Journal of Mining & Safety Engineering,1997(Z1):79-81，233.
［9］卢方超,张学博.倾斜特厚煤层采空区孔隙率分布规律研究［J］.中国安全生产科学技术,2020,16(8):119-124. LU Fangchao,ZHANG Xuebo.Research on porosity distribution law of goaf in inclined extra-thick coal seam［J］.Journal of Safety Science and Technology,2020,16(8):119-124.
［10］LIANG Y,WANG S.Prediction of coal mine goaf self-heating with fluid dynamics in porous media ［J］.Fire Safety Journal,2017,87:49-56.
［11］WANG G,WU M,WANG R,et al.Height of the mining-induced fractured zone above a coal face［J］.Engineering Geology,2017,216:140-152.
［12］FAN C,XU H,WANG G,et al.Determination of roof horizontal long drilling hole layout layer by dynamic porosity evolution law of coal and rock ［J］.Powder Technology,2021,394:970-985.
［13］时国庆,胡方坤,王德明,等.采空区自燃“三带”分布规律的四维动态模拟［J］.中国矿业大学学报,2014,43(2):189-194. SHI Guoqing,HU Fangkun,WANG Deming,et al.Unsteady simulation on distribution of three zones for spontaneous combustion in goaf areas［J］.Journal of China University of Mining & Technology,2014,43(2):189-194.
［14］王玉涛.采空区多孔介质空隙率与渗透特性三维空间动态分布模型［J］.中国安全生产科学技术,2020,16(10):40-46. WANG Yutao.Three-dimensional spatial dynamic distribution modelon porosity and permeability characteristics of porous media in goaf ［J］.Journal of Safety Science and Technology,2020,16(10):40-46.
［15］YANG X,SASAKI K,ZHANG X,et al.Permeability estimate of underground long-wall goaf from P-wave velocity and attenuation by lab-scale experiment on crushed rock samples ［J］.Journal of Applied Geophysics,2018,159:785-794.
［16］高光超,李宗翔,张春,等.基于三维“O”型圈的采空区多场分布特征数值模拟［J］.安全与环境学报,2017,17(3):931-936. GAO Guangchao,LI Zongxiang,ZHANG Chun,et al.Numerical simulation for multi-field distribution characteristic features of the goaf based on 3D“O”type circle［J］.Journal of Safety and Environment,2017,17(3):931-936.
［17］YUAN L,SMITH A C.CFD modeling of spontaneous heating in a large-scale coal chamber ［J］.Journal of Loss Prevention in the Process Industries,2009,22(4):426-433.
［18］徐树媛,张永波,时红,等.采空区冒落带内破碎岩体的渗流特征与渗透性试验研究［J］.安全与环境工程,2022,29(1):128-134. XU Shuyuan,ZHANG Yongbo,SHI Hong,et al.Flow characteristics and experimental study on the permeability of mining induced fractured rock mass in caving zone［J］.Safety and Environmental Engineering,2022,29(1):128-134.
［19］李宗翔,衣刚,武建国,等.基于“O”型冒落及耗氧非均匀采空区自燃分布特征［J］.煤炭学报,2012,37(3):484-489. LI Zongxiang,YI Gang,WU Jianguo,et al.Study on spontaneous combustion distribution of goaf based on the “O” type risked falling and non-uniform oxygen［J］.Journal of China Coal Society,2012,37(3):484-489.
［20］XIA T,ZHOU F,WANG X,et al.Controlling factors of symbiotic disaster between coal gas and spontaneous combustion in longwall mining gobs ［J］.Fuel,2016,182:886-896
［21］蒋曙光,张人伟,陈开岩.监测温度和气体确定采空区自燃“三带”的研究［J］.中国矿业大学学报,1998(1):58-61. JIANG Shuguang,ZHANG Renwei,CHEN Kaiyan.Determination of spontaneous combustion “Three-Zone” by measuring gas consistency and temperature in goaf［J］.Journal of China University of Mining & Technology,1998(1):58-61.
［22］HUANG Z,MA Z,SONG S,et al.Study on the influence of periodic weighting on the spontaneous combustion “three-zone” in a gob ［J］.Journal of Loss Prevention in the Process Industries,2018,55:480-491.
［23］ZHUO H,QIN B,QIN Q.The impact of surface air leakage on coal spontaneous combustion hazardous zone in gob of shallow coal seams:a case study of Bulianta Mine,China［J］.Fuel,2021,295:120636.

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备注/Memo

备注/Memo:
收稿日期： 2024-01-10
* 基金项目： 国家自然科学基金项目（52074148，52274205，52104194）
作者简介： 高科，博士，教授，主要研究方向为灾变计算与智能风控。
更新日期/Last Update: 2024-06-25