Numerical Analysis of Collapse Vibration In Building Blasting Demolition
The vibration effect of building collapse cannot be neglected in the demolition blasting. In this article, measures to reduce the collapse vibration were discussed with combination of theoretical analysis and numerical simulation. The vibration numerical model of a frame structured building collapse due to blasting demolition was built by dynamic finiteelement analysis code ANSYS/LS-DYNA. The structure model was built with BEAM and SHELL element and kinematic hardening material. The ground model was built with solid element and elastic-plastic material, artificial boundaries was set reasonably. The vibration velocity of ground particle with different demolition scheme were analyzed and compared. The result showed that : The effect of collapse vibration in blasting demolition can be reduced significantly by reasonable design of blasting cuts and time delay in detonation.
blasting demolition collapse vibration dynamic finite element numerical simulation
LIU Wei LIU Feng
School of Chemistry Engineering, Anhui University of Science and Technology, Huainan, China
国际会议
The Second Asian-Pacific Symposium on Blasting Techniques(第二届亚太地区爆破技术研讨会)
大连
英文
560-563
2009-07-01（万方平台首次上网日期，不代表论文的发表时间）