Invention Grant
- Patent Title: Cartridge for tunnel blasting
- Patent Title (中): 用于隧道爆破的墨盒
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Application No.: US14497561Application Date: 2014-09-26
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Publication No.: US09382796B2Publication Date: 2016-07-05
- Inventor: Dong Hyeon Kim
- Applicant: Korea Railroad Research Institute
- Applicant Address: KR Gyeonggi-Do
- Assignee: KOREA RAILROAD RESEARCH INSTITUTE
- Current Assignee: KOREA RAILROAD RESEARCH INSTITUTE
- Current Assignee Address: KR Gyeonggi-Do
- Agency: Pearne & Gordon LLP
- Priority: KR10-2013-0121678 20131014
- Main IPC: E21C37/00
- IPC: E21C37/00 ; E21C37/06 ; E21C37/08
Abstract:
A cartridge for tunnel blasting is provided a cartridge for tunnel blasting, which easily breaks a rock, by inserting a cartridge containing water into a bore hole formed in a rock by using a boring device, and injecting liquid nitrogen into the inserted cartridge, so as to induce cracks of the rock by using the characteristic of the water that expands when it is frozen.
Public/Granted literature
- US20150102652A1 CARTRIDGE FOR TUNNEL BLASTING Public/Granted day:2015-04-16
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