Title:
ROCK CUTTING APPARATUS USING WATER JET AND ROCK CUTTING METHOD USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2012/036524
Kind Code:
A2
Abstract:
A rock cutting apparatus includes a shaft having a hollow therein where high-pressure water is movable, the shaft being configured to be inserted into a hole, a moving unit for forcing the shaft to reciprocate, and a nozzle unit installed at a front end of the shaft to inject the high-pressure water moving through the shaft. The nozzle unit injects the high-pressure water to cut a rock around the hole so that the hole communicates with a neighboring hole. Therefore, a cut surface or line is formed before blasting, which reduces blasting vibration transferred to the outside and minimizes overbreak.
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Inventors:
KIM, Jeong-Gyu (207-103, Samsung Raemian Apt.,159, Singongdeok-dong, Mapo-gu, Seoul 121-765, KR)
SONG, Jae-Joon (506 Donga Town Apt, 1629-2, Nakseongdae-dong, Gwanak-gu, Seoul 151-818, KR)
YOO, Young-Il (1 Mugunghwa Hanyang Apt, Sinchon-dong, Dongan-gu, Anyang-si, Gyeonggi-do 431-792, 10-1902, KR)
SONG, Jae-Joon (506 Donga Town Apt, 1629-2, Nakseongdae-dong, Gwanak-gu, Seoul 151-818, KR)
YOO, Young-Il (1 Mugunghwa Hanyang Apt, Sinchon-dong, Dongan-gu, Anyang-si, Gyeonggi-do 431-792, 10-1902, KR)
Application Number:
KR2011/006886
Publication Date:
March 22, 2012
Filing Date:
September 16, 2011
Export Citation:
Assignee:
KIM, Jeong-Gyu (207-103, Samsung Raemian Apt.,159, Singongdeok-dong, Mapo-gu, Seoul 121-765, KR)
GUNWOO TECH CO.,LTD. (213-2, Yujeong-ri,Docheok-myeon, Gwangju-si, Gyeonggi-do 464-882, KR)
SONG, Jae-Joon (506 Donga Town Apt, 1629-2, Nakseongdae-dong, Gwanak-gu, Seoul 151-818, KR)
YOO, Young-Il (1 Mugunghwa Hanyang Apt, Sinchon-dong, Dongan-gu, Anyang-si, Gyeonggi-do 431-792, 10-1902, KR)
GUNWOO TECH CO.,LTD. (213-2, Yujeong-ri,Docheok-myeon, Gwangju-si, Gyeonggi-do 464-882, KR)
SONG, Jae-Joon (506 Donga Town Apt, 1629-2, Nakseongdae-dong, Gwanak-gu, Seoul 151-818, KR)
YOO, Young-Il (1 Mugunghwa Hanyang Apt, Sinchon-dong, Dongan-gu, Anyang-si, Gyeonggi-do 431-792, 10-1902, KR)
International Classes:
E21C37/06; B28D1/22
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (8F. Jinsuk B/D, 1536-7,Seocho-dong, Seocho-gu, Seoul 137-872, KR)
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Claims: