CAJ | 학술논문

钻探施工中出现的孔内事故，绝大多数与人的主观因素有关，纯自然事故比较少见。针对三山岛海上金矿勘查工程ZK3410钻孔发生的一起严重孔壁坍塌事故，对其事故原因进行了详细的分析，并采取了一系列的处理措施，增大冲洗液浓度，增强护壁效果；扫孔和清除孔内坍塌物，采用特殊钻具捞取沉淀物，直至孔壁稳定，孔底清洁，钻进正常。实践证明，操作人员的主观意识对预防孔内事故的发生是至关重要的。
찬탐시공중출현적공내사고，절대다수여인적주관인소유관，순자연사고비교소견。침대삼산도해상금광감사공정ZK3410찬공발생적일기엄중공벽담탑사고，대기사고원인진행료상세적분석，병채취료일계렬적처리조시，증대충세액농도，증강호벽효과；소공화청제공내담탑물，채용특수찬구로취침정물，직지공벽은정，공저청길，찬진정상。실천증명，조작인원적주관의식대예방공내사고적발생시지관중요적。
Most of the hole accidents in drilling construction are related to the human factors, pure natural accident is rela-tively rare.The detail analysis was made on the a serious wall collapse accident in ZK3410 hole of Sanshandao offshore gold exploration project, and a series of measures were taken to deal with the accident.The flushing fluid concentration was in-creased to improve the wall protection effects and hole cleaning was done by dredging the sediment with special drilling tool, until normal drilling operation was returned.The practice proves that the subjective consciousness of the operators is crucial to the hole accidents prevention.