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Prediction of Principal Frequency of Ground Vibration from Delayed Blasting  

Chung, Doo-Sung (조선대학교 에너지 자원공학과)
Kang, Choo-Won (조선대학교 에너지 자원공학과)
Ko, Jin-Seok (조선대학교 에너지 자원공학과)
Chang, Ho-Min (조선대학교 에너지 자원공학과)
Ryu, Pog-Hyun (조선대학교 에너지 자원공학과)
Publication Information
Tunnel and Underground Space / v.20, no.2, 2010 , pp. 112-118 More about this Journal
Abstract
Before blasts that can have direct impacts on human bodies or structures, it is necessary to assess impacts of ground vibration. Therefore, frequency has been recognized as an important factor in order to assess impact on ground vibration and damages. There have been many studies on impacts of frequency. But, there have been no studies on relations between vibration and frequency according to delay time difference. In this study, we examined the relations between delay time difference and frequency according to each frequency with which reinforcement and destructive intervention repeat through delay time difference obtained using superposition modeling of single hole blasting waveform based on the theory of time difference developed by Langefors.
Keywords
Ground vibration; Delay time; Frequency; Superposition modeling;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Medearis, K., 1979, Structural response to explosion induced ground motions, American Society of Civil Engineers, Special Publication, ASCE, New York, 138.
2 Newmark, N.M. and W.J. Hall, 1982, Earthquake spectra and design, Earthquake Engineering Research Inst., Berkley Cali., 103.
3 Nicholls, H.R., and C.F. Johnson and W.I. Duvall., 1971, Blasting vibrations and their effects on structures, Bureau of Mines Bull. 656.
4 OSM (Office of Surface Mining), 1983, Surface Coal Mining and Reclamation Operation: Permanent Regulatory Program; Use of Explosives; General Performance Standards; Permit Application.
5 강추원, 김종인, 2005, 주 주파수를 고려한 협동장약 특성에 관한 연구, 터널과 지하 공간, Vol. 15, No. 4, pp.316-323.   과학기술학회마을
6 김대상, 이정인, 이희근, 1991, 발파진동의 속도 및 주파수를 고려한 허용 진동치 결정에 관한 연구, 한국자원공학회지, Vol. 28, No. 6, pp.444-454.
7 류창하, 1995, 발파에 의한 지반진동의 수준 및 주파수 특성 예측, 한국 자원공학회 최신엔지니어링 발파 특별 심포지엄 논문집, pp.132-141.
8 임한욱, 김재동, 1992, 발파진동의 크기와 주파수 특성에 관한 연구, 한국자원공학회지, Vol. 29, No. 3, pp.146-157.
9 Langefors U. and Kihlstrom B., 1978, The modern technique of Rock Blasting, New York, John Wiley & Sons, pp.258-293.