摘要
介绍了复杂环境下l5层居民楼的定向爆破拆除案例，根据工程特点及周围环境制定了向西南方向倒塌的爆破方案。对l层～5层非承重墙、楼梯进行局部预拆除；采用重心移出的方法计算爆破高度；计算了楼房的质量，用来确定预留墙体的面积；采用多重闭合电一非电复式起爆网路。通过合理的方案设计和参数选取，取得了良好的爆破效果，塌落振动未对周围建筑产生影响，可为类似工程提供参考。
The directional blasting demolition of 15-storey residential building under complex environment was introduced.A blasting scheme of collapsing to southwest by the characteristics of the engineering and surrounding environment was designed.The 1~5storey of nonbearing walls and stairs were partly demolished in previous.Blasting height was calculated by the method of shifting gravity centre and the weight of building was calculated in order to confirm the area of reserved wall.Multiple closing initiation network with digital and non-digital was used.The ideal effect was obtained by reasonable design of scheme and parameters.The surrounding buildings were not influenced by collapse vibration.It could provide a reference for similar engineerings.
出处
《工程爆破》
2016年第2期74-76,共3页
Engineering Blasting
关键词
复杂环境
爆破拆除
剪力墙结构
预拆除
定向爆破
塌落振动
Complex environment
Blasting demolition
Shear wall structure
Pre-demolition
Directional blasting
Collapse vibration
