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烟囱爆破拆除及其振动测试分析
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Indexed by:期刊论文

Date of Publication:2013-06-20

Journal:爆破器材

Included Journals:PKU、ISTIC

Volume:42

Issue:3

Page Number:21-24

ISSN No.:1001-8352

Key Words:爆破拆除;爆破参数;爆破振动;塌落振动;FFT变换

Abstract:针对41m高钢混结构烟囱爆破拆除,采用梯形缺口方式,设计了合理的烟囱爆破参数,并对爆破振动、塌落振动进行监测.通过分析振动图谱,得出烟囱从起爆到塌落共需7s左右.介绍了振动主频的两种求解方法,一种是国标规定的最大振动速度对应的频率;另一种是最大能量密度处由FFT分析快速傅里叶变换得到的频率.虽然两者之间存在较大差异,但都证明了爆破振动的主频要高于塌落振动的主频,塌落振动频率更接近于建筑物的固有频率,容易引起共振.

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Supervisor of Doctorate Candidates
Supervisor of Master's Candidates

Gender:Male

Alma Mater:大连理工大学

Degree:Doctoral Degree

School/Department:力学与航空航天学院

Discipline:Engineering Mechanics. Applied and Experimental Mechanics. Biomechanics and Nanomechanics

Business Address:大连理工大学 A1区26号 力学系203室

Contact Information:yanhh@dlut.edu.cn 0411-84708397

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