冷却塔爆破拆除的数值模拟研究

Numerical Simulation of Explosive Demolition of Cooling Towers

利用动力有限元软件Ansys/ls-dyna建立有限元模型模拟了某冷却塔爆破拆除的倒塌过程,取得了与实际爆破效果较为一致的结果。在此基础上,对此冷却塔模型在另外3种爆破切口下的倒塌效果进行了模拟,对比分析了爆破切口对冷却塔的倒塌过程、触地震动效应及爆堆面积的影响。

A cooling tower＇s collapsing process under explosive demolition was simulated by the use of dynamic finite element analysis program Ansys/Ls -dyna, and the results showed that it is very close to the collapse of the ac- tual process. On this basis, the collapsing process of the finite element mode under three different blast cuts were sim- ulated. The effects of blast cut on cooling tower＇s collapsing process were analyzed,which played guiding role in the design of cut parameters of blasting projects with similar situation.