210m钢筋砼烟囱爆破倒塌过程测量分析  

Measurements on the collapse process of 210 m reinforced concrete chimney by blasting demolition

作　　者：朱宽[1] 钟冬望[1,2] 陈浩[1,2] 李琳娜[1,2] 何理[1] 司剑锋[1] 

机构地区：[1]武汉科技大学理学院,湖北武汉430065 [2]武汉科技大学爆破技术研究中心,湖北武汉430065

出　　处：《武汉科技大学学报》2013年第4期311-315,共5页Journal of Wuhan University of Science and Technology

基　　金：国家自然科学基金资助项目(50774056;51174147)

摘　　要：以某特大钢筋混凝土烟囱定向爆破工程为研究对象,采用高速摄影、应力应变测量两种测量手段,对烟囱爆破倒塌过程进行实验研究,获取倾倒过程中的各种运动参量。数据对比分析结果表明,烟囱倾倒过程分为爆破切口形成、整体下坐、定轴转动、局部折断、冲击撞地五个阶段。In the directional blasting engineering of reinforced concrete smokestack, the blasting demolition was measured with the aid of high speed photography and stress-strain measuring, and the various motion parameters during the collapsing were acquired. The results show that collapse processes of chimney can be divided into five stages including the formation of blasting cut, entirety sinking, fixed-axis rotation, local fracture and crashing into earth.

关 键 词：定向爆破 倒塌过程 钢筋混凝土烟囱 高速摄影 应力应变 

分 类 号：TU751.9[建筑科学—建筑技术科学]