Application of Ecentric Simultaneous Casing Drilling Technology in Reinforcement Construction of High Slope of the Expressway

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Application of Ecentric Simultaneous Casing Drilling Technology in Reinforcement Construction of High Slope of the Expressway
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                        MA Yuan-hongMA Yuan-hong
No.713 General Team, North West Mining and Geological Exploration Bureau for Non-ferrous Metals
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KE Yu-junKE Yu-jun
No.713 General Team, North West Mining and Geological Exploration Bureau for Non-ferrous Metals
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Abstract:

The paper introduced the eccentric simultaneous casing drilling technology about hole making, construction facilities and the corresponding technical measures in high slope broken layer of Xi’an to Ankang expressway.

Key words:slope reinforcement; broken layer; eccentric simultaneous casing drilling; hole making; prestress anchoring cable

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History

Received:December 21,2009
Revised:January 06,2010
Adopted:January 10,2010
Online: February 09,2010
Published: February 25,2010

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