倾斜砖烟囱定向爆破拆除  

Directional blasting demolition of inclined brick chimney

作　　者：王凯[1,2] 张智宇[1,2] 黄永辉[2,3] WANG Kai;ZHANG Zhiyu;HUANG Yonghui(Faculty of Land and Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China;Institute of New Blasting Technology and Application,Kunming University of Science and Technology,Kunming 650093,China;Faculty of Electric Power Engineering,Kunming University of Science and Technology,Kunming 650500,China)

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093 [2]昆明理工大学爆破新技术应用研究所,云南昆明650093 [3]昆明理工大学电力工程学院,云南昆明650500

出　　处：《中国矿业》2018年第8期151-154,共4页China Mining Magazine

基　　金：国家自然科学基金项目资助(编号:51564027;41362013);云南省应用基础研究计划基金项目资助(编号:2013FZ036)

摘　　要：为了按照业主要求的限定倾倒方向爆破拆除一座45m高的倾斜砖烟囱,通过理论计算出烟囱爆破切口纠偏角为14°,根据经验计算和参考类似工程,确定了切口圆心角为200°、高度1.2m及其他爆破参数,并采取了相应的安全防护措施。爆破后倾斜烟囱倒塌方向和距离与设计完全吻合,对近在咫尺的建筑物没有造成任何影响,为类似爆破工程提供了借鉴。In order to blast demolition of a 45 m high inclined brick chimney in accordance with the dumping direction required by the owners,through theoretical calculation,the chimney blasting cutoff correction angle is 14°,based on experience calculation and reference to similar projects,the angle of the cut central angle of 200°,the height of 1.2 m,and other blasting parameters were determined,and the corresponding safety measures were taken.After blasting,the direction and distance of tilt chimney collapse exactly match with the design,which has no influence on the building nearby,providing reference for similar blasting engineering.

关 键 词：倾斜砖烟囱 爆破拆除 纠偏角 

分 类 号：TD235[矿业工程—矿井建设]