烟囱折叠倒塌的数值模拟研究  

Numerical Simulation of Foldaway Toppling of Chimney Blasting Demolish

作　　者：梁开水[1] 刘楚乔[1] 张爱平 葛向宏 

机构地区：[1]武汉理工大学资源与环境工程学院,武汉430070 [2]湖北水利水电总公司,武汉430001 [3]内蒙古兴业集团,赤峰024005

出　　处：《武汉理工大学学报》2008年第4期62-64,共3页Journal of Wuhan University of Technology

摘　　要：在烟囱爆破拆除过程中,由于周围环境的限制,往往需要让烟囱进行2段或多段折叠倒塌。利用LSDYNA软件,模拟了烟囱双向折叠倒塌及触地过程,分析了上下切口同时起爆和下切口比上切口延迟1 s起爆的情况。研究结果表明数值模拟可以为烟囱的爆破拆除的参数选择提供依据,对爆破效果进行预测,对实际施工具有指导意义。When the chimney was demolished,the chimney would be foldaway topple in two segments or multi-segments because of the constraint of environment.LSDYNA software was employed to simulate the process of the two-direction toppling and touchdown of the chimney,two work cases were analyzed.One was that the up cut and the down cut were ignited at same time;the other was that the ignition time of the down cut was delayed 1 second to the up cut.The results showed that the numerical simulation could provide reference...

关 键 词：烟囱 爆破拆除 折叠倒塌 数值模拟 

分 类 号：TU746.5[建筑科学—建筑技术科学]