Numerical simulation on decay spread of blasting shock wave in different media
LI Shun-bo1,2,DONG Zhao-xing1,2,QI Yan-jun1,2, JIAO Jin-feng1,2,3
(1.Sate Key Laboratory For Geomechanics and Deep Underground Engineering CHINA UNVERSITY OF MINING&TECH NOLOGY，JIANGSU XUZHOU 221008
2. School of Architecture and Civil Engineering of CHINA UNVERSITY OF MINING&TECHNOLOGY, JIANGSU XUZHOU 221116
3.CPLA Engineer Commanding College，JIANGSU XUZHOU 221008)
Abstract: The attenuation law of shock wave in water, soil and concrete were numerically simulated by applying ANSYS/LS-DYNA. The results showed that: The magnitude of wave impedance has greater effects of the shock wave initial peak; the shock wave in soil lasted the longest and decay slower. The relationship between the shock wave speed and intensity is approved, the greater intensity, the higher velocity. The media compressibility has greater effects of the energy. The energy in soil is maximal, which in water is minimum.
2009, Vol. 28 
