CAJ | 학술논문

沿空留巷技术是合理开发煤炭资源，提高煤炭回收率，减少巷道掘进量，缓和采掘接续紧张局面的一项先进的井工开采技术。但是采用无煤柱巷旁柔模支护技术留巷后，在回采时出现了一个极为严峻的问题，即在有自燃倾向性的煤层中采用该工艺回采，因留巷时柔模接顶不实、柔模墙体局部压裂等漏风问题不好解决，造成了采空区、开切眼及停采线等地段遗煤自燃发火，特别是在厚煤层中分层采和放顶煤开采时，采空区自燃事故出现的几率更高、更明显。为此，如何在沿空留巷所形成的工作面减少漏风、稳定系统及抑制自燃发火工作显得尤为重要。本文着重介绍了金凤煤矿在柔模巷旁支护技术中运用以注液氮为主、注浆（凝胶）、束管监测、监测监控及人工检测等为辅的综合防灭火措施，成功地杜绝了沿空留巷及回采期间自燃发火隐患，确保了工作面的安全回采，取得了明显的经济效益和社会效益。
연공류항기술시합리개발매탄자원，제고매탄회수솔，감소항도굴진량，완화채굴접속긴장국면적일항선진적정공개채기술。단시채용무매주항방유모지호기술류항후，재회채시출현료일개겁위엄준적문제，즉재유자연경향성적매층중채용해공예회채，인류항시유모접정불실、유모장체국부압렬등루풍문제불호해결，조성료채공구、개절안급정채선등지단유매자연발화，특별시재후매층중분층채화방정매개채시，채공구자연사고출현적궤솔경고、경명현。위차，여하재연공류항소형성적공작면감소루풍、은정계통급억제자연발화공작현득우위중요。본문착중개소료금봉매광재유모항방지호기술중운용이주액담위주、주장（응효）、속관감측、감측감공급인공검측등위보적종합방멸화조시，성공지두절료연공류항급회채기간자연발화은환，학보료공작면적안전회채，취득료명현적경제효익화사회효익。
Gob-side entry retaining Technology is an advanced well drilling technology for reasonable exploita?tion of coal resources, improve the coal recovery rate, decrease roadway drivage, moderate mining tense situa?tion. But after adopt coal mining without pillars flexible form-work supporting technology, there is a serious problem in stopping, it is in the coal seam have spontaneous combustion tendency flexible form-work roof-contacted hollowness and the wall local fracturing and air leakage caused the goaf area, open-off cut and stop mining line and other areas spontaneous combustion, especially in thick coal seam layering mining and sub-level caving mining, the goaf spontaneous combustion accident probability is higher and more obvious. Therefore, how to reduce air leakage, stable system and inhibit the spontaneous combustion in gob-side entry retaining is particularly important. This paper emphatically introduces the comprehensive fire prevention mea?sures that Jinfeng Coal Mine give priority to liquid nitrogen injection and complementary grouting (gel), tube monitoring, monitoring control and artificial detection in flexible form-work supporting technology, successfully put an end to spontaneous combustion hidden trouble during gob-side entry retaining and stopping, ensured the safety mining of working face and achieved obvious economic benefits and social benefits.