工程爆破

2007, (03) 56-58

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高60m、80m两座砖砌烟囱定向爆破拆除
DIRECTIONAL BLASTING DEMOLITION OF TWO BRICK CHIMNEYS WITH HEIGHT OF 60M AND 80M RESPECTIVELY

毛益松;傅光明;夏长青;周凤仪;
MAO Yi-song,FU Guang-ming,XIA Chang-qing,ZHOU Feng-yi (National University of Defense Technology,Changsha 410073,China)

摘要(Abstract):

两座高60m、80m的砖砌烟囱位于某一电厂内,附近分布有电缆线、运煤栈桥、发电厂房;烟囱上部出现多道纵向裂缝。针对环境复杂性和烟囱结构特殊性,两座烟囱采用一次点火相向依次定向倒塌爆破方案,并采取了开设3个定向(位)窗、挖集碴坑等安全措施,使烟囱爆破达到了定向准确、安全可靠。
Two brick chimneys with height of 60m and 80m respectively erected in a Power Plant surrounded with cable lines,coal trestle and hydroelectric power workshops.And several longitudinal cracks were found on the upper section of the chimneys.Regarding their involvement in complicated environment and the particular structure of the chimneys,the project adopted the blasting program of directional collapsing tevis-a-vis respectively through single ignition.Safety technological measures,such as excavating three directional windows,positioning pits in the implementation and practicing caution were taken to ensure the two chimneys' collapsing to correct direction on the safety side.

关键词(KeyWords): 烟囱;定向爆破;爆破拆除
Chimney;Directional blasting;Blasting demolition

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作者(Author): 毛益松;傅光明;夏长青;周凤仪;
MAO Yi-song,FU Guang-ming,XIA Chang-qing,ZHOU Feng-yi (National University of Defense Technology,Changsha 410073,China)

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