| Original document(4 pages) 中文版 |
A notching groove explosion method solves problems of unregular rock plane of rupture, bad explosion accuracy and low rate resulting in over done or less done to the opening surfaces, poor engineering quality and high cost in the existing technology. This inventino features in cutting two vertical small grooves along the drilling wall after finishing drilling. Since stress along the small grooves is concentrated in explosion, rock is split open along the way, the exploded surface is smooth to increase the accuracy and effect of explosion and prevent the rock from unregular broken to further influence work on the opening surface, available in rock or frozen earth explosion. |
Application Number
申请号 |
02113224 |
Application Date
申请日 |
2002.01.09 |
| Title 名称 |
Notch blasting method |
Publication Number
公开号 |
1431455 |
Publication Date
公开日 |
2003.07.23 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
F42D3/04 |
Applicant(s) Name
申请人 |
Huadian Construction Work Adapter Technology Co Ltd, Guizhon |
| Address 地址 |
561000 |
| Inventor(s) Name 发明人 |
Wang Zhonggang |
| Attorney & Agent 代理人 |
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| More information 更 多 信 息 |
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