CAJ | 학술논문

钻孔事故是煤矿井下定向钻孔安全、高效施工的巨大威胁。介绍了定向钻进常见卡钻、钻具断落和喷孔事故；分析了其成因、预防措施和处理工艺经验。认为对待钻孔事故应坚持“预防为主，处理为辅”的原则；结合装备现状，应开展适用于煤矿井下定向钻进事故处理的专用技术及装备研究。
찬공사고시매광정하정향찬공안전、고효시공적거대위협。개소료정향찬진상견잡찬、찬구단락화분공사고；분석료기성인、예방조시화처리공예경험。인위대대찬공사고응견지“예방위주，처리위보”적원칙；결합장비현상，응개전괄용우매광정하정향찬진사고처리적전용기술급장비연구。
Drilling accident is a huge threat to safe and efficient operation of directional drilling in underground coal mine. The common directional drilling accident was classified into drill rod sticking accident, breaking off ac-cident and blowout accident, and drill rod sticking accident classified into formation collapse sticking, reducing sticking and sediment sticking. On the summary of cause of formation, preventive measures and treatment tech-nology of these drilling accidents, the paper drew a conclusion that we must stick to principles of‘prevention first and treatment second’. On the basis of actuality of the directional drilling accident in underground coal mine, the paper suggested that the specialized directional drilling accident preventive measures and treatment technology in underground coal mine should be developed immediately.