Title:
EXCAVATION SYSTEM USING A WATER JET, AND EXCAVATION METHOD USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2012/044138
Kind Code:
A2
Abstract:
The present invention relates to a tunnel excavation technique using a water jet. A water jet system includes: a moving unit forwardly and backwardly movable toward a blasting object area for excavating a tunnel; an articulated robot arm mounted on the moving unit; a water jet nozzle injecting high pressure water and an abrasive material toward an excavation object area; and a control unit controlling the moving unit, the articulated robot arm, and the water jet nozzle. A free face having a predetermined depth of the excavation objection area is formed in a tunnel excavation direction by the water jet system. According to the present invention, since the blasting is performed after the free face is formed, blasting vibration may be effectively restricted.
Inventors:
CHO GYE-CHUN (KR)
OH TAE-MIN (KR)
OH TAE-MIN (KR)
Application Number:
PCT/KR2011/007322
Publication Date:
April 05, 2012
Filing Date:
October 04, 2011
Export Citation:
Assignee:
KOREA ADVANCED INST SCI & TECH (KR)
CHO GYE-CHUN (KR)
OH TAE-MIN (KR)
CHO GYE-CHUN (KR)
OH TAE-MIN (KR)
International Classes:
E21B7/18; E21B7/02
Foreign References:
| KR100531985B1 | 2005-11-30 | |||
| KR100599982B1 | 2006-07-13 |
Other References:
See also references of EP 2623706A4
Attorney, Agent or Firm:
PARK, Young-zoon (KR)
박영준 (KR)
박영준 (KR)
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Claims: