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(江西理工大學(xué) 贛州  341000)
［提要］給出了確定煙囪等細(xì)桿高聳建筑物控制爆破拆除方案的原則，并以高80m的鋼筋混凝土煙囪的成功定向倒塌爆破拆除為例，詳細(xì)介紹了爆破切口形狀、切口的圓周和切口高度的確定方法，爆破參數(shù)、爆破網(wǎng)路設(shè)計(jì)以及確保準(zhǔn)確定向倒塌所采取的技術(shù)措施等。
［關(guān)鍵詞］ 鋼筋混凝土煙囪 倒塌方案 切口范圍 定向窗 定位口
Practice of Demolishing a 80mhigh Reinforced Concrete Chimney by Directional Controlled Blashing/Jiao Yongbin，Gao Saihong，Lu Zhexiang，Peng Minjie(Jiangxi University of Science and Technology, Ganzhou 341000,China)
Abstract:The definite principle which controlls the demolition backout project of the chimney is introduced, and taking the 80m high reinforced concrete chimney which was successfully directional collapse demolition backout as example, the detail of how to insure the demolition margin shape, the margin perimeter and the margin height，as well as the demolition parameter, the demolition network designs and the technical to insure the accurate direction collapses are introduced.
Keywords:reinforced concrete chimney； collapse programme； incision scope； direc
tional window; positioning gap