지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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In this study, several concrete-block blast tests and AUTODYN numerical analyses were conducted to analyze the effects of different stemming and coupling materials on explosion results. Air, sand, and polymer gel were used as both the stemming and coupling materials. The stemming and coupling effects of these materials were compared with those of the full-charge condition. Soil-covered or buried concrete blocks were used for field crater tests. It was found from the concrete block tests and numerical analyses that both the crater size and the peak pressure around the blast hole were higher when the polymer gel was used than when the sand and the decoupling condition were used. The numerical analyses revealed the same trend as those of the field tests.
Pressure peaks in concrete block models were calculated to be 37, 30, and 16 MPa, respectively, for the cases of the polymer gel, sand, and no stemming and decoupling condition. The pressure peak was 52 MPa in the case of full-charge condition, which was the highest pressure. But the damage area for the case was smaller than that obtained from the use of polymer gel. Full-charge was also used as a reference test.
목차
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참고문헌 (12)
참고문헌 신청
Ahmed, M. / 2013 / Hydrogel: Preparation, characterzation, and applications: A review 6(2):1.5~121
Antoun, T. / 2012 / Dynamic behavior of sand: Annual Report FY 11
Awoukeng, A. / 2014 / Investigations of impact biomechanics for penetrating ballistic cases / Bio-med Mater Eng. 24(6):2331~2339
Bohloli, B. / 2001 / A laboratory study on reducing the quantity of rock fines at failure:application to rock blasting and crushing / Bull Eng Geol Env 60:271~276
Dai, C. / 2013 / A Study on Enviornment- Friendly Polymer Gel for Water Shut-off Treatments in low- Temperature Reservoirs / Journal of applied Polymer Science. Sci 131:40154~40157
Antoun, T. / 2012 / Dynamic behavior of sand: Annual Report FY 11
Awoukeng, A. / 2014 / Investigations of impact biomechanics for penetrating ballistic cases / Bio-med Mater Eng. 24(6):2331~2339
Bohloli, B. / 2001 / A laboratory study on reducing the quantity of rock fines at failure:application to rock blasting and crushing / Bull Eng Geol Env 60:271~276
Dai, C. / 2013 / A Study on Enviornment- Friendly Polymer Gel for Water Shut-off Treatments in low- Temperature Reservoirs / Journal of applied Polymer Science. Sci 131:40154~40157
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