Volume 32 Issue 2
Apr.  2004
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HAO Shi-jun. The development of Horizontal Directional Drilling in coal mines[J]. COAL GEOLOGY & EXPLORATION, 2004, 32(2): 57-59.
Citation: HAO Shi-jun. The development of Horizontal Directional Drilling in coal mines[J]. COAL GEOLOGY & EXPLORATION, 2004, 32(2): 57-59.
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The development of Horizontal Directional Drilling in coal mines

  • Xi'an Branch, CCRI, Xi'an 710054, China

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  • Received Date: June 22, 2003
  • Available Online: March 17, 2023
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  • The development of Horizontal Directional Drilling has different technical ways at home and abroad.It includs R&D of drilling rigs, drilling tools and inclination, theory of drilling hole path, all show different characteristics. This paper clarifies the differences of HDD in coal mines between our country and other developed countries, as well as development direction of HDD in our country in the coming years.
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