Pre-splitting 발파공법에 관한 기초적인 연구

초록

Blasting technology of Korea has been developed and controlled blasting(; Pre-splitting , smooth blasting whith are used in many ways) is avaliable for lowing damages in surrounding rock mass. In pre-splitting, the contour charges are fired before the rest of charges, most often in a seperate round so it has an effect for safety in surrounding rock mass. Particulary in excavating of rock slop, this adapted to last surface. However because of the application between empirical formula and field work, it is allpied to in-situ rock as an accessing of experience. In this study, it is shown the criteria of design in pre-splitting compared the foreign empirical formula with the experimental data in Granite and Limestone region using the explosives made in Korea.