인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
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
Abstract Aluminum‐containing explosives (AE) pose significantly enhanced blast hazards compared to conventional explosives due to their aluminum‐driven aftercombustion effects. This study systematically investigates the shock wave propagation characteristics of AE in both corrugated steel‐lined tunnel (CSLT) and conventional concrete tunnel (CT) through combined experimental and theoretical analyses. Comparative evaluation with equivalent‐mass trinitrotoluene (TNT) charges reveals AE's superior performance in energy release efficiency, overpressure peaks, and duration characteristics, attributable to the aftercombustion effect of aluminum particles. Experimental results demonstrate that the corrugated steel lining enhances blast wave attenuation in the distal tunnel section primarily through geometric reflection and turbulent dissipation, thereby reducing the peak overpressure by approximately 50% and increasing the attenuation rate by 3%–10% compared to an unlined tunnel. Combining dimensional analysis and empirical data, we developed a predictive model for AE planar wave propagation across both tunnel types. This model confirmed the CSLT's efficacy in attenuating the first pressure peak, precisely predicting it with less than 10% error in magnitude and below 3% error in arrival time. These findings provide a theoretical foundation for optimizing blast‐resistant designs in protective engineering and refining safety distance assessment protocols.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.