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기술사례 : 선대구경 수평보링 발파공법(PLHBM)의 설계 연구
백종현 ( Jong Hyun Beak ),백상현 ( Sang Hyun Beak ),한동훈 ( Dong Hun Han ),원아람 ( Ah Ram Won ),김창섭 ( Chang Seop Kim ) 대한화약발파공학회 2012 화약발파 Vol.30 No.2
Blasting technology aims to maximize digging efficiency as well as minimize vibration and noise. So, it is key point of blasting technology to raise blasting effect as much as possible and reduce vibration and noise and the design of PLHBM that is the tunnel blasting method having such merit was studied in this paper. PLHBM has the excellent blasting efficiency as it drills the empty hole with high caliber of 250∼1,000mm at centre cut, contributes to blasting vibration reduction effect much and can be usefully applied to tunnel blasting sites. So it is judged that it enables the development of tunnel blasting method to be advanced one more step by studying and suggesting the design method of PLHBM.