复杂环境下某158m高混凝土烟囱双向三折爆破拆除研究

英文篇名：THE CONSTRUCTION RESEARCH ON DYNAMITE DEMOLITION OF R.C CHIMNEY WITH A HEIGHT OF 158m UNDER COMPLICATED CIRCUMSTANCE
中文刊名：工业建筑
英文刊名：Industrial Construction
作者：苗吉军 ; 王俊富 ; 刘延春 ; 孙更强 ; 范学臣
英文作者：Miao Jijun Wang Junfu Liu Yanchun(College of Civil Engineering of Qingdao Technological University Qingdao 266033)Sun Gengqiang Fan Xuechen(The First Municipal Construction Co.Ltd in Qingdao Qingdao 266033)
中文关键词：混凝土烟囱 ; 爆破拆除 ; 微差控制
英文关键词：R.C chimney dynamite demolition minim time delay control
出版日期：2008-06-20
机构：青岛理工大学土木工程学院;青岛市第一市政工程有限公司;
年：2008
期：S1
出版单位：工业建筑

摘要

某158 m高混凝土烟囱位于某市繁华地段,因规划需要进行爆破拆除。结合爆破场地实际情况,采取南北双向三折控制爆破方案,确定了爆破切口的位置、爆破开口的参数设计、爆破弹药用量及爆破后的安全与防护等问题。经监测,爆破效果理想,烟囱按照设想的方向和范围倒塌,筒体完全破碎,折叠痕迹明显,对周围建筑及设施没有造成大的影响,采取此方案爆破拆除超过150m高的混凝土烟囱在国内乃至亚洲尚属首次,可为同类建筑的爆破拆除提供参考。
The construction research on dynamite demolition of R.C chimney with a height of 158 m in the downtown area was carried out.According to the real circumstance,the exploding plan of minim time delay was concerned,based on the calculation results which including the exploding incision point,the parameter of exploding cave,the dosage of the dynamite and other safety measures.The inspection results show that the demolished effects were very well,the collapse direction,the collapse dumps matched very well with the designed way,at the same time,little effects of vibration caused by the explode were detected.It is the first time to demolish the R.C chimney with a height of 158 m under a complicated circumstance both in China and Asia,which can be a good reference for the similar projects.

引文

1顾毅成.爆破工程施工与安全.北京:冶金工业出版社,2004
2苗吉军顾祥林,等.地震作用下砌体结构倒塌反应的数值模拟计算分析.土木工程学报2005,38(9)
3李承.基于离散单元法的钢筋混凝土框架结构爆破拆除.[硕士学位论文].上海:同济大学,2000