Construction Technology of ZK0902 Exploration Hole in Yanjiang Mine of Changbai in Jilin

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Construction Technology of ZK0902 Exploration Hole in Yanjiang Mine of Changbai in Jilin
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                        QUAN Zhi-gangQUAN Zhi-gang
Sixth Geological Prospeting Engineering Team, Jilin Provincial Bureau of Geo-exploration and Mineral Development
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WANG YuWANG Yu
Sixth Geological Prospeting Engineering Team, Jilin Provincial Bureau of Geo-exploration and Mineral Development
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YANG Chun-liuYANG Chun-liu
Sixth Geological Prospeting Engineering Team, Jilin Provincial Bureau of Geo-exploration and Mineral Development
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Abstract:

Hydration swelling in coal measure strata with subsidence pool forming was the main difficulty in drilling construction in Yanjiang mine of Changbai; and hole collapsing, block-falling and deep limestone alteration formed karst cave with serious leakage and long construction period. Field analysis was made to solve the above problems by specific technologies.

Key words:coal measure strata; wire-line drilling; subsidence pool

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History

Received:December 17,2009
Revised:December 17,2009
Adopted:January 10,2010
Online: May 25,2010
Published: April 25,2010

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