中国矿业
中國礦業
중국광업
CHINA MINING MAGAZINE
2014年
7期
96-99
,共4页
反井施工技术%反井钻机%铁矿%井下深立井
反井施工技術%反井鑽機%鐵礦%井下深立井
반정시공기술%반정찬궤%철광%정하심립정
raise boring technology%raise boring machine%iron mine%deep shaft underground
黑龙山铁矿井下设计施工3条近300m深立井井筒，为实现施工的安全高效，采用反井施工技术。铁矿井下施工100m以内浅立井反井施工技术已较为成熟，但施工近300m深立井在国内尚属首次。通过岩石柱状图分析岩石条件，获取岩石抗压强度、松散系数等数据，计算钻机导孔推力、导孔扭矩、扩孔拉力、扩孔扭矩，结合参数决定采用BM C300型反井钻机。施工中严格执行设计施工参数，合理控制转速保证导孔偏斜率，在合理位置布置三合金翅稳定钻杆，在缺少相关施工经验以及岩层裂隙发育等条件下顺利的完成了施工任务，井筒偏斜率均控制在0.5％左右。实践表明，采用反井施工技术施工井下深立井的成功经验值得推广和借鉴。
黑龍山鐵礦井下設計施工3條近300m深立井井筒，為實現施工的安全高效，採用反井施工技術。鐵礦井下施工100m以內淺立井反井施工技術已較為成熟，但施工近300m深立井在國內尚屬首次。通過巖石柱狀圖分析巖石條件，穫取巖石抗壓彊度、鬆散繫數等數據，計算鑽機導孔推力、導孔扭矩、擴孔拉力、擴孔扭矩，結閤參數決定採用BM C300型反井鑽機。施工中嚴格執行設計施工參數，閤理控製轉速保證導孔偏斜率，在閤理位置佈置三閤金翅穩定鑽桿，在缺少相關施工經驗以及巖層裂隙髮育等條件下順利的完成瞭施工任務，井筒偏斜率均控製在0.5％左右。實踐錶明，採用反井施工技術施工井下深立井的成功經驗值得推廣和藉鑒。
흑룡산철광정하설계시공3조근300m심립정정통，위실현시공적안전고효，채용반정시공기술。철광정하시공100m이내천립정반정시공기술이교위성숙，단시공근300m심립정재국내상속수차。통과암석주상도분석암석조건，획취암석항압강도、송산계수등수거，계산찬궤도공추력、도공뉴구、확공랍력、확공뉴구，결합삼수결정채용BM C300형반정찬궤。시공중엄격집행설계시공삼수，합리공제전속보증도공편사솔，재합리위치포치삼합금시은정찬간，재결소상관시공경험이급암층렬극발육등조건하순리적완성료시공임무，정통편사솔균공제재0.5％좌우。실천표명，채용반정시공기술시공정하심립정적성공경험치득추엄화차감。
Heilongshan Iron Mine designed to constructed 3 nearly 300m deep shafts ,the raise boring method was used for safe and efficient construction .It’ s the first time that raise boring machine constructs nearly 300m deep shaft underground in China , although it has been mature in constrcting within 100m shallow shaft . The use of the BMC300 raise boring machine is based on the analysis of rock compressive strength and loose coefficient , base on the pilot thrus , reaming thrust , pilot torque and reaming torque . The successful completion of this construction is depedent on the optimization of the construction program and the strict control of the parameters , the key techniques such as reasonable arrangement of stabilizers and control of deflection has also been carefully studied , the deflection rate is about 0.5% . The practice shows that the use of raise boring method in deep shaft underground is worth learning from and promoting .
