Development of CJ-130 Two-way Pneumatic DTH

Home > Archive>Volume 36, Issue 1, 2009 >31-33

Development of CJ-130 Two-way Pneumatic DTH
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                        MA Li-dongMA Li-dong
School of Geosciences and Environment Engineering, Central South University
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LONG WeiLONG Wei
School of Geosciences and Environment Engineering, Central South University
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SU Dong-jiuSU Dong-jiu
418 Team, Hunan Provincial Bureau of Geology and Mineral Resources Development
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Abstract:

According to sticking accident in anchorage hole drilling in landslide stratum, a pneumatic DTH was developed with two-way impact. The paper introduced its performance parameters, working principle and structural components, elaborated the pneumatic DTH design, and made performance checking calculation to virtual prototype to verify the feasibility of the equipment.

Key words:pneumatic DTH; two-way impact; piston; anchorage hole

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Received:September 12,2008
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Published: January 25,2009

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