摘要
为了研究在变埋深情况下,炸药在土中爆炸成坑和伴随的应力波传播规律,利用自由场化爆试验和数值模拟相结合的方法,研究了土中装药不同埋设深度爆炸效应问题,描述了爆炸成坑宏观破坏现象,给出了土中压力和实测波形,并对测试结果进行了分析,得到了土中爆炸成坑的经验公式和压力传播规律。在自由场实验和数值模拟的基础上,得到了变埋深条件下应力波在土中传播规律、爆炸成坑半经验公式、半封闭爆炸阶段弹坑半径预估公式。
To study the laws of the crater formed by explosion and stress wave propagation at different burial depths in soils, the effects on the crater produced through explosion were studied through free-field experiments and numerical simulation, demonstrating the macroscopic characteristics of explosion. The radius of the crater and the recorded waveforms of pressure were acquired in the site of soil. The empirical formulas of the crater formed by explosion and propagation laws of shock wave in soils were concluded. The laws of stress wave propagation at different burial depths in soil were obtained, the semi-rational formulas of crater formed by explosion were inferred, and the empirical formulas of the crater were obtained at the phase of the semi-closed explosion.
出处
《解放军理工大学学报（自然科学版）》
EI
北大核心
2010年第2期112-116,共5页
Journal of PLA University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(50874005)
博士生科学基金资助项目(20090461418)
关键词
爆炸力学
土中爆炸
自由场实验
爆炸成坑
mechanics of explosion
explosion in soils
free-field experiment
crater formed by explosion
