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Study on the Classification of Weak Rock by Test Blast  

선우춘 (한국지질자원연구원)
전양수 (한국지질자원연구원)
천대성 (한국지질자원연구원)
한공창 (한국지질자원연구원)
Publication Information
Explosives and Blasting / v.21, no.4, 2003 , pp. 1-10 More about this Journal
Abstract
The classification of weak rocks is normally connected with the rippability classifications. The excavation of rock is frequently carried out by blasting. A classification of the weak rocks by test blasting with small quantity of explosives was attempted in the present study. The crater ratio and blasting constant that resoled from test blasting were used as a e parameter of the classification. The seismic velocity of rock mass and Protodyakonov's index were also applied for the also rock classification.
Keywords
weak rock; crater; Protodyakonov index; blasting constant; seismic velocity;
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