干砂地基初始应力对爆炸波传播影响的模型试验

陈加浩,李俊超,朱斌,卢强,汪玉冰,管龙华,赵凤奎

Model test on influence of initial stress on blast wave propagation in dry sand foundation

Jiahao CHEN,Junchao LI,Bin ZHU,Qiang LU,Yubing WANG,Longhua GUAN,Fengkui ZHAO

表 2 爆炸波传播速度与冲击波衰减临界特征值

Tab.2 Propagation velocity of explosion wave and attenuation critical characteristic value of blast wave

试验 工况 Ns/(m·s−1) Np/(m·s−1) c/(m·s−1) dc/W1/3/(m·kg−1/3) σc/MPa trc/ms GE-1 188~259 — — — — — GE-2 102~350 — — — — — CE-1 185~329 185~207 243 1.29 1.27 0.185 CE-2 260~528 260~296 486 1.51 0.43 0.242