Application Status and Developmental Trend of Anchor Drill Bit in Coal Mine
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Xi’an Research Institute of China Coal Technology & Engineering Group Corp

Clc Number:

P634.4

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    Abstract:

    China is a big coal mining country, most of the coal mines are by underground mining with large engineering quantities of coal mine roadway tunneling and supporting, a large number of anchor bits are needed in the tunnel support construction, and anchor bit design and manufacturing technology have been developed rapidly. This paper introduced the development and application status of anchor drill bit, analyzed the bit’s technical feature and applicability, and put forward the existed problems of anchor drill bit in the construction of hard rocks and complex formations combining with the actual needs of the coal mine roadway support. Finally, the development trend of anchor bit is expounded in the aspects of bit design and processing technology.

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History
  • Received:January 24,2017
  • Revised:April 06,2017
  • Adopted:April 10,2017
  • Online: June 16,2017
  • Published: