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65m砖烟囱爆破倒塌过程与断裂分析
The Collapse Process of Blasting a 65 m-high Brick Chimney and Its Rapture Analysis
【Author】 LIANG Kai-shui,WANG Bin,WANG Yu-jie,CAN Yue (Wuhan University of Technology,Wuhan 430070,China)
【机构】 武汉理工大学;
【摘要】 介绍一座65m高的砖砌烟囱定向爆破和倒塌过程。爆破设计及施工符合一般规范要求,但爆破烟囱倾至5°即于中部发生断裂脱节,致使其上半截几乎垂直着地并偏离设计方向14°倒塌。分析了过早断裂的原因,提出了防范措施。
【Abstract】 The directional blasting and collapse process of a 65-high brick chimney are introduced. The blasting design and implementation confirm to the relative norms, but the chimney was ruptured at its middle reach when it inclined to an angle of 5°, the upper reach almost directly fall to the ground deviating 14° from the designed direction. The reasons of premature rupture are analyzed, and the protective measures are put forward.
【关键词】 砖砌烟囱;
定向爆破;
倒塌过程;
断裂;
切口长度;
【Key words】 brick chimney; directional blasting; collapse process; rupture; notch length;
【Key words】 brick chimney; directional blasting; collapse process; rupture; notch length;
- 【会议录名称】 湖北省爆破学会第六届学术会议论文集
- 【会议名称】湖北省爆破学会第六届学术会议
- 【会议时间】2001
- 【分类号】TU746.5
- 【主办单位】湖北省爆破学会、武汉理工大学