15层全剪力墙结构居民楼定向爆破拆除  

Directional blasting demolition for a 15-storey residential building with shear wall structure

作　　者：董文峰[1,2] 孟祥栋 龚敏[2] 凌三红 汪龙 支文超 

机构地区：[1]国核工程有限公司,上海201100 [2]北京科技大学土木与环境工程学院,北京100083 [3]重庆市爆破工程建设有限责任公司,重庆400020 [4]四川省宜宾威力化工有限责任公司,四川宜宾644600

出　　处：《工程爆破》2016年第2期74-76,共3页Engineering Blasting

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.

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 

分 类 号：TD235[矿业工程—矿井建设] TU746.5[建筑科学—建筑技术科学]