sub-glacial bedrock; anti-torque device; mechanical model; coring tool
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College of Construction Engineering, Jilin University,College of Construction Engineering, Jilin University,College of Construction Engineering, Jilin University,College of Construction Engineering, Jilin University,College of Construction Engineering, Jilin University,College of Construction Engineering, Jilin University

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    Abstract:

    大扭矩反扭装置是研制铠装电缆冰下基岩电动机械取心钻具的主要部分之一,该装置的失效将导致钻进无法进行,甚至将造成钻具脱落等严重的孔内事故。设计了铠装电缆钻具反扭装置实验台,并就实验装置的设计思想、设计原则、主要结构参数及初步实验结果进行了详细介绍。该实验台可以测试反扭装置在不同温度冰层和不同孔径任意组合下所能提供的反扭矩大小以及产生的下滑阻力。初步实验验证,该实验台工作性能良好,可以为更好的选择反扭装置类型及最优的使用参数提供重要依据。

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History
  • Received:October 24,2013
  • Revised:December 03,2013
  • Adopted:December 07,2013
  • Online: January 02,2014
  • Published:
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