80m高的钢筋混凝土烟囱定向爆破拆除
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摘要
本文介绍了采用定向爆破法成功地拆除了复杂环境下高80m的钢筋混凝土烟囱的具体工程实例。通过对钢筋混凝土烟囱结构分析,利用压杆原理设计爆破切口参数,采用交叉复式网路确保其稳定性和安全性,并详细介绍了爆破烟囱的定向方法及安全防护措施。爆破后,烟囱完全按设计方向倾倒,为同类工程参考和借鉴。
This paper presents a successful example of an 80 m reinforced concrete chimney by directional blasting method in a complex environment.Through the structural analysis of the chimney,strut principle was used to design parameters of blasting cut and the parallel closed network was used for stability and safety.The paper also introduces the directional blasting method of the chimney and safety protection measures to reduce vibration and the second touchdown in detail.After the blasting,the chimney crashed down by design,which provides a good example for the similar engineering.
This paper presents a successful example of an 80 m reinforced concrete chimney by directional blasting method in a complex environment.Through the structural analysis of the chimney,strut principle was used to design parameters of blasting cut and the parallel closed network was used for stability and safety.The paper also introduces the directional blasting method of the chimney and safety protection measures to reduce vibration and the second touchdown in detail.After the blasting,the chimney crashed down by design,which provides a good example for the similar engineering.
引文
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[5]范磊.拆除爆破中飞石产生的原因及其防护[J].工程爆破,2002,8(1):35-37.
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[7]中华人民共和国标准.爆破安全规程(GB6722—2003)[S].北京:中国标准出版社,2004.
[2]李玉岐,谢康和.烟囱爆破拆除的切口参数研究[J].中国矿业,2004,13(11):21-24.
[3]陈德志,丁帮勤.苛刻条件下100m高钢筋混凝土烟囱的定向爆破与振动测试[J].工程爆破,2003,9(2):33-35.
[4]施富强,柴俭.狭长区域内120m钢筋混凝土烟囱控制爆破拆除[J].工程爆破,2004,10(2):27-30.
[5]范磊.拆除爆破中飞石产生的原因及其防护[J].工程爆破,2002,8(1):35-37.
[6]刘殿中,杨仕春.工程爆破实用手册(2版)[M].北京:冶金工业出版社,2003.
[7]中华人民共和国标准.爆破安全规程(GB6722—2003)[S].北京:中国标准出版社,2004.
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