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노치 장약공을 이용한 발파균열제어에 관한 수치해석적 연구
조상호 ( Sang Ho Cho ),박승환 ( Seung Hwan Park ),김광염 ( Kwang Yeom Kim ),나카무라유이치 ( Yuichi Nakamura ),카네꼬카츠히꼬 ( Katsuhiko Kaneko ) 대한화약발파공학회 2008 화약발파 Vol.26 No.1
Mechanical excavation techniques employing tunnel boring machines (TBM) and rock splitters have been proposed to minimize rock damage for tunnel and underground waste repository facilities. Such a mechanical excavation, however, is extremely expensive and not applicable in all cases. For these reasons, controlled blasting using notched charge holes have been suggested to achieve crack growth along specific directions and inhibit growth along other directions. This study introduces a dyanmic fracture process analysis code to simulate fracture processes of rock which has a notched charge hole.