近距离煤层群“110工法”开采工作面煤自燃危险区域判定陈振江1，陈子纬1，李张彤1，王鸿1，赵海章2（1.华晋焦煤有限公司沙曲2号煤矿，山西吕梁033000；2.兰州理工大学石油化工学院，甘肃兰州730050）摘要：煤层自燃危险区域的精准判定能够指导防灭火方案的制定与实施，减少煤自燃灾害的发生，提高煤矿安全生产水平。针对沙曲二号煤矿近距离煤层群5302工作面“110工法”开采特点及布置方式，分析了该工作面开采过程采空区煤自燃危险性。结合现场实际情况，设计了采空区“三带”的观测方案，对采空区遗煤厚度、氧气浓度及漏风强度进行了测算，判定了采空区煤自燃“三带”分布规律，研究结果可为该类煤矿的自燃灾害防治提供参考。关键词：突出矿井；采空区；煤自燃；危险区域判定；“110工法”中图分类号：TD822文献标志码：A文章编号：1009-0797（2023）02-0006-05Determinationtechnologyofspontaneouscombustionriskzoneatworkingfaceof“110method”mininginclosecoalseamgroup（CHENZhenjiang1,CHENZiwei1,LIZhangtong1,WANGHong1,ZHAOHaizhang2）（1.ShaquNo.2CoalMine,HuajinCokingCoalCo.,LTD.,Luliang033000i,China.2.SchoolofPetrochemicalEngineering,LanzhouUniversityofTechnology,Lanzhou730050,China）Abstract:Accuratedeterminationofcoalseamspontaneouscombustiondangerareacanguidetheformulationandimplementationoffirepreventionandextinguishingscheme,reducetheoccurrenceofcoalspontaneouscombustiondisasterandimprovethelevelofcoalminesafetyproduction.Accordingtotheminingcharacteristicsandlayoutmodeof“110method”in5302workingfaceofclose-distancecoalseamgroupinShaquNo.2CoalMine,theriskofcoalspontaneouscombustioningoafduringminingprocessofthisworkingfaceisanalyzed.Combinedwiththeactualsituationinthefield,theobservationschemeofthreezonesingoafisdesigned,thethicknessofresidualcoal,oxygenconcentrationandairleakageintensityingoafarecalculated,andthedistributionlawof"threezones"ofcoalspontaneouscombustioningoafisjudged.Theresearchresultscanprovidereferenceforthepreventionandcontrolofspontaneouscombustiondisastersinthiskindofcoalmines.Keywords:prominentmines；miningareas；coalspontaneouscombustion；hazardousareadetermination；“110method”0引言煤炭自燃是煤矿...
