工程爆破

2011, v.17;No.64(02) 45-48

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复杂环境下八角高楼的爆破拆除
BLASTING DEMOLITION OF AN EIGHT-ANGLE HIGH BUILDING UNDER COMPLEX ENVIRONMENTS

韩文红;田永良;齐世福;翟欢;乔拓;
HAN Wen-hong1,TIAN Yong-liang2,QI Shi-fu2,ZHAI Huan1,QIAO Tuo2(1.Nuclear Industry Nanjing Construction Group Co.Ltd.,Nanjing 210003,China;2.Engineering Institute of Engineering Corps.,PLA Univ.of SCI.& TEC.,Nanjing 210007,China)

摘要(Abstract):

介绍了复杂环境下爆破拆除一栋八角高楼的工程实例。通过增大爆破切口高度及采用单向折叠定向爆破的方式,有效地控制了大楼的倒塌范围;通过采用半秒差分段延时起爆技术、合理控制炸药单耗、开挖减振沟等措施,显著地降低了爆破振动和塌落振动;并阐述了炮孔布置、单孔装药量等爆破参数和安全防护措施,以及爆破振动的监测结果;为此类高楼的爆破拆除积累了经验。
The blasting demolition project of an eight-angle high building under complex environments was introduced.The collapse scope of the building was controlled effectively by increasing the height of blasting cut and using unidirectional-folding blasting.The blasting and collapse vibration were reduced obviously by using half a second delaying detonation technology,reasonable control the explosive consumption,and excavating ditch.Blasting parameters such as bore-holes layout and charge of single bore-hole,safety protection measures,and monitoring results of blasting vibration were also described.The blasting technology can provide reference for blasting demolition of such buildings in the future.

关键词(KeyWords): 八角高楼;爆破拆除;定向倒塌;爆破振动;安全防护
Eight-angle high building;Blasting demolition;Directional collapse;Blasting vibration;Safety protection

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作者(Author): 韩文红;田永良;齐世福;翟欢;乔拓;
HAN Wen-hong1,TIAN Yong-liang2,QI Shi-fu2,ZHAI Huan1,QIAO Tuo2(1.Nuclear Industry Nanjing Construction Group Co.Ltd.,Nanjing 210003,China;2.Engineering Institute of Engineering Corps.,PLA Univ.of SCI.& TEC.,Nanjing 210007,China)

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