150m高烟囱爆破拆除振动测试  

Monitoring on Vibration caused by Explosive Demolition of 150 Meters Height Chimney

作　　者：唐春海[1] 张永哲[2] 梁向前[2] 

机构地区：[1]广西大学资源与冶金学院,南宁530004 [2]中国水利水电科学研究院,北京100038

出　　处：《爆破》2013年第2期131-133,共3页Blasting

摘　　要：在包头第三热电厂150 m钢筋混凝土烟囱爆破拆除工程中,测量了爆破缺口内炸药爆炸和烟囱倒塌触地引起的地面质点振速和主振频率。经分析得出结论:在烟囱等高耸建筑物的爆破倒塌过程中,炸药爆炸产生的振动强度小于烟囱倒塌触地引起的振动强度;(构)筑物落地冲击振动的频率一般比爆破引起的振动频率要低;铺设缓冲材料、挖减振沟等措施可减小触地冲击引起的地面振动强度。To demolish a 150-meter high reinforced concrete chimney in Baotou power plant with blasting technology,the velocities and dominant frequencies of ground particles vibration induced by explosive and chimney touchdown were detected.Conclusions from the explosive demolition of high building showed that the intensity of ground vibration caused by charge explosion was usually much lower than by the collapse impact of high parts on the ground;the frequency of touchdown vibration was lower than that of blasting vibration.The intensity of the touchdown vibration was reduced by using some technological measures such as laying buffering material and damping ditch.

关 键 词：烟囱 拆除爆破 振动监测 

分 类 号：TU746.5[建筑科学—建筑技术科学]