构筑物爆破拆除振动规律的研究

蒋耀港;沈兆武;龚志刚

振动与冲击 ›› 2012, Vol. 31 ›› Issue (5) : 36-41.

PDF(1569 KB)
PDF(1569 KB)
振动与冲击 ›› 2012, Vol. 31 ›› Issue (5) : 36-41.
论文

构筑物爆破拆除振动规律的研究

  • 蒋耀港; 沈兆武; 龚志刚
作者信息 +

Study on Vibration Law of Structure Blasting Demolition

  • JIANG Yao-gang, SHEN Zhao-wu, GONG Zhi-gang
Author information +
文章历史 +

摘要

现有构筑物爆破拆除振动的研究主要集中于爆破振动、后座振动与塌落振动,其中以塌落振动占主导地位。通过理论分析及工程实际监测案例发现:塌落振动又可分为前期爆破切口闭合振动和后期主体塌落振动,对于特殊结构爆破拆除切口闭合振动与主体塌落振动处于同一影响水平。文章从理论与实践的角度分析了爆破振动、后座振动、切口闭合振动和主体塌落振动的生成、传播规律及其对周边结构的危害等级,并提出了相应的降振措施与振动监测建议

Abstract

The study on structure blasting demolition vibration mainly focuses on blasting vibration , seating vibration and collapse vibration at present, and collapse vibration was dominant, further more collapse vibration was divided into prophase blasting cut mesh vibration and anaphase main part collapse vibration which were in same dominant position for special structures by theory analyses and the cases of engineering practical monitoring. The paper not only analyzed the production and propagation law of the four types vibration and the harm rank to surrounding structures, but also put forward some corresponding damping measures and vibration monitoring suggestions.

关键词

塌落振动 / 切口闭合振动 / 后座振动 / 爆破振动 / 降振措施

Key words

collapse vibration / blasting cut mesh vibration / backseat vibration / blasting vibration / damping measures

引用本文

导出引用
蒋耀港;沈兆武;龚志刚. 构筑物爆破拆除振动规律的研究[J]. 振动与冲击, 2012, 31(5): 36-41
JIANG Yao-gang;SHEN Zhao-wu;GONG Zhi-gang. Study on Vibration Law of Structure Blasting Demolition[J]. Journal of Vibration and Shock, 2012, 31(5): 36-41

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