高层框架楼房单向折叠爆破拆除

以哈尔滨市一座17层框架-剪力墙结构楼房的成功爆破拆除为例,介绍在复杂环境下,由于高层框架楼房倒塌距离受限,运用单向折叠控制爆破技术,有效控制高大楼房倒塌范围和实现最佳解体破碎效果的方法和措施,同时介绍有效控制高层楼房爆破飞石、爆破振动和塌落振动的具体方法和措施。重点剖析了爆破切口部位、角度、起爆顺序、起爆延时时间等因素对高大楼房倒塌距离产生的影响,为复杂环境下对高大框架-剪力墙结构楼房实施单向折叠倒塌爆破提供参考。

Demolition of high-rise frame building by unidirectional folding blasting

Taking the successful blasting demolition of a 17-story frame-shear wall structure building in Harbin as an example,the collapsed distance of the high-rise frame building is limited under complicated environment and unidirectional folding control blasting technology using to effectively control the collapse extent of tall building is introduced.The methods and measures to achieve the best disintegration effect are introduced.At the same time,the concrete methods and measures to control the blasting fly rocks,blasting vibration and collapse vibration of the high-rise building are introduced.The influence of blasting incision location,angle,detonation sequence and delay initiation time on collapse distance of tall building is analyzed in detail,which could provide a reference for unidirectional folding blasting of tall frame-shear wall structure building in complex environment.