朱怀宏,郑志财,王霞明,何华伟,何如明
ZHU Huai-hong~1,ZHENG Zhi-cai~1,WANG Xia-ming~2,HE Hua-wei~2,HE Ru-ming~2(1.Taizhou Public Security Bureau,Taizhou,Zhejiang 317000,China;2.Zhejiang Jingan Blasting Engineering Co.Ltd.,Hangzhou 310007,China)

• 1:浙江台州市公安局
• 2:浙江台州市公安局
• 3:浙江京安爆破工程有限公司
• 4:浙江京安爆破工程有限公司

摘要(Abstract)：

采用定向控制爆破技术拆除立柱加固型7层框架大楼。为了彻底炸毁加固立柱,确保大楼顺利定向倾倒,通过多次爆破试验确定了炸药单耗、布孔参数和装药结构。为了控制大楼塌落时的触地震动,采取了秒差分区爆破、空中解体、铺垫缓冲层和开挖减震沟等技术措施。爆破过程中进行了震动监测。此外还介绍了起爆顺序、安全防护措施及爆破结果。
A seven-storeyed reinforced concrete frame building with strengthened columns was demolished by directional controlled blasting.In order to completely blow up the strengthened columns,securing successful collapsing of the building to the predicted direction,the specific charge,hole-placing parameters and charging structure were determined through many times of blasting tests.For the sake of controlling the touch-down vibration from collapsing of the building,some technological measures,such as zoning blasting with second delay intervals,in-air disintegration,buffer laying and the excavation of vibration-separated ditch,were taken.In the course of the blasting,the vibration monitoring was carried out.In addition,the blasting sequence,safety precautions and blasting results were presented.

关键词(KeyWords)： 框架楼房;拆除爆破;定向倾倒;触地震动;震动监测
Frame building; Demolition blasting; Directional collapsing; Touchdown vibration;Vibration monitoring

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 朱怀宏,郑志财,王霞明,何华伟,何如明
ZHU Huai-hong~1,ZHENG Zhi-cai~1,WANG Xia-ming~2,HE Hua-wei~2,HE Ru-ming~2(1.Taizhou Public Security Bureau,Taizhou,Zhejiang 317000,China;2.Zhejiang Jingan Blasting Engineering Co.Ltd.,Hangzhou 310007,China)

参考文献(References)：

• 〔1〕刘殿中 工程爆破实用手册[M] 北京:冶金工业出版社,1999
• 〔2〕汪　浩,郑炳旭 拆除爆破综合技术[J] 工程爆破,2003,9(1):27-31
• 〔3〕唐　勇,王希之,欧阳春 复杂条件下框架结构楼房的爆破拆除[J] 工程爆破,2001,7(2):45-49