A STUDY ON LARGE SECTION BENCH BLASTING OF THE ROCK CAVERN FOR EFFICIENT EXCAVATION

Abstract

The large-scale rock cavern of underground power station, LPG underground storage, and radioactive waste disposal had been carefully excavated to keep the stability of surrounding rock. On the other hand, the establishment of efficient excavation system is an important subject for reduction of construction cost, in order to realize future construction of more large rock cavern in more deep area. This paper presents the large section bench blasting for efficient excavation on the basis of machine ability improvement and observational construction.