中國(guó)有色金屬學(xué)報(bào)(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 7 No. 3 September 1997 |
A CASE STUDY ON LONG HOLE RAISING BY SHOOTING TO RELIEF HOLES
Ding Dexin
（Central South Institute of Technology; Hengyang 421001）
Abstract:A case study was conducted on long hole raising by shooting to relief holes, the results showed that some advanced technology indexes such as the advance of each blasting round arrived at 7～9 m in a 9 m×3.5 m large area raise have been obtained. In addition, rules were recommended for planning the raising technique.
Key words: long hole raising shooting relief holes
