Numerical Simulation of Blast-induced Earthquake and Blast Vibration Analysis
[1]ZHANG Zhichao,LIU Hanlong,CHEN Yumin,et al.Numerical Simulation of Blast-induced Earthquake and Blast Vibration Analysis[J].Journal of Zhengzhou University (Engineering Science),2012,33(05):10-15.[doi:10.3969/j.issn.1671-6833.2012.05.003]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
33
Number of periods:
2012 05
Page number:
10-15
Column:
Public date:
2012-09-10
- Title:
- Numerical Simulation of Blast-induced Earthquake and Blast Vibration Analysis
- CLC:
- TU443
- DOI:
- 10.3969/j.issn.1671-6833.2012.05.003
- Abstract:
- In the frame of LS-DYNA, the constitutive model which can well describe the dynamic property ofsoil under blast loading was proposed, meanwhile , certain blast-induced earthquake in-situ test was simulated,with the calculated aeeeleration time histories approximate to the recorded dala, which indicates the numericalmethod can provide useful instructions for the in-situ blasting tests in advance and well predicts the blasting re.sults ; based on it , the blasting vibration law through the stratums was analyzed, which reveals that up from theplane where explosive charges lay, the amplitude of horizontal acceleration and velocity minish continuouslywith the decrease of the burial depth ( or the inerease of blast center distance) , while the amplitude of verticalaeceleration and velocity increase first, then decrease and at last remain relatively stable when approaching thefree surface on the ground surface. The numerical endeavour enriches the research on the blast-induced groundmotion and supplies a simple, effective and economic method for the simulation of natural earthquake by milli.second blasting test as well as for the study of seismic response of soil based on it.
- References:
- -
- Similar References:
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Last Update:
1900-01-01