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贯通式空气反循环潜孔锤连续取心锤头改进与试验效果
引用本文:宋小军,李文彬,王扶志,殷琨.贯通式空气反循环潜孔锤连续取心锤头改进与试验效果[J].探矿工程,2014,41(7):52-57.
作者姓名:宋小军  李文彬  王扶志  殷琨
作者单位:天津华北地质勘查局,天津华北地质勘查局,天津华北地质勘查局,吉林大学建设工程学院
摘    要:贯通式空气反循环潜孔锤连续取心技术主要适用于干旱无水或缺水地区的地质钻探工作。为了了解该工艺的普遍适用性,在某大水矿区进行了一系列试验,通过对锤头和钻杆的局部改造,解决了钻探、取心、治水等一系列重大难题,为提高该工艺的普遍适用性和推广性提供了可靠的技术支撑。

关 键 词:空气反循环钻探  贯通式潜孔锤  取心钻进  锤头  混合器接头  钻进效率
收稿时间:2014/3/25 0:00:00
修稿时间:2014/6/5 0:00:00

Improvement of Run-through Air Reverse Circulation DTH Continuous Coring Hammer and the Test Effects
SONG Xiao-jun,LI Wen-bin,WANG Fu-zhi and YIN Kun.Improvement of Run-through Air Reverse Circulation DTH Continuous Coring Hammer and the Test Effects[J].Exploration Engineering(Drilling & Tunneling),2014,41(7):52-57.
Authors:SONG Xiao-jun  LI Wen-bin  WANG Fu-zhi and YIN Kun
Institution:North China Geological Exploration Bureau,North China Geological Exploration Bureau,North China Geological Exploration Bureau,College of Construction Engineering
Abstract:Continuous coring technology by run-through air reverse circulation DTH hammer is mainly applied in the geological drilling in dry or water-deficient areas. In order to learn the universal applicability of this technology, a series of experiments were conducted in a water abundant mining area, by local transformation of the hammer and drill pipe, the major problems of drilling, coring and water control were solved.
Keywords:air reverse circulation drilling  run-through DTH  coring bit  hammer  mixer joint  drilling efficiency
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