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A Study on the Design of PLHBM  

Beak, Jong-Hyun (신발파기술사사무소)
Beak, Sang-Hyun (신발파기술사사무소)
Han, Dong-Hun (신발파기술사사무소)
Won, Ah-Ram (신발파기술사사무소)
Kim, Chang-Seop (신발파기술사사무소)
Publication Information
Explosives and Blasting / v.30, no.2, 2012 , pp. 66-76 More about this Journal
Abstract
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.
Keywords
PLHBM; Blast; Vibration; Design;
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