葛勇;汪旭光;魏格平;
GE Yong;WANG Xu-guang;WEI Ge-ping;School of Civil and Environmental Engineering,University of Science and Technology Beijing;Engineering Blasting Institute of Liaoning Technical University;Beijing General Research Institute of Mining and Metallurgy;Inner Mongolia Kangning Blasting Co.,Ltd.;

• 1:北京科技大学土木与环境工程学院
• 2:辽宁工程技术大学工程爆破研究所
• 3:北京矿冶研究总院
• 4:内蒙古康宁爆破有限责任公司

摘要(Abstract)：

介绍了复杂环境下47.1m高楼定向拆除爆破的工程实例。结合待爆楼房结构特点和周围环境制定了爆破方案。对前厅墙体、立柱和2⁴层楼梯、电梯进行局部预拆除,采用三角形爆破切口和"大把抓"与四通结合的复式交叉爆破网路,并通过采用延时起爆技术、铺设沙袋以及开挖减振沟等措施,显著降低了爆破振动和塌落振动,取得了理想的爆破效果,可为此类复杂环境下的高楼拆除爆破提供参考。
The engineering example of demolition blasting of a 47.1m high frame building under complicated environment was introduced.The blasting scheme was made based on the structural characteristics of buildings and the surrounding environment.The wall of antechamber,columns and 24层楼梯、电梯进行局部预拆除,采用三角形爆破切口和"大把抓"与四通结合的复式交叉爆破网路,并通过采用延时起爆技术、铺设沙袋以及开挖减振沟等措施,显著降低了爆破振动和塌落振动,取得了理想的爆破效果,可为此类复杂环境下的高楼拆除爆破提供参考。
The engineering example of demolition blasting of a 47.1m high frame building under complicated environment was introduced.The blasting scheme was made based on the structural characteristics of buildings and the surrounding environment.The wall of antechamber,columns and 2⁴ flights of stairs and elevators were removed before blasting,the triangular cut was designed,and the "large packing" combined with four way pipe were used to establish the double cross blasting network.Through the delay blasting technology,laying sandbags and damping ditch excavation and so on,the blasting vibration and collapse vibration were significantly reduced,and the ideal blasting effect was achieved.It provided a reference for buildings demolition blasting under complicated environment.

关键词(KeyWords)： 复杂环境;拆除爆破;安全防护
Complicated environment;Demolition blasting;Safety protection

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 葛勇;汪旭光;魏格平;
GE Yong;WANG Xu-guang;WEI Ge-ping;School of Civil and Environmental Engineering,University of Science and Technology Beijing;Engineering Blasting Institute of Liaoning Technical University;Beijing General Research Institute of Mining and Metallurgy;Inner Mongolia Kangning Blasting Co.,Ltd.;

参考文献(References)：

• [1]冯叔瑜.城市控制爆破[M].北京:中国铁道出版社,1996.
• [2]金骥良,顾毅成,史雅语,等.拆除爆破设计与施工[M].北京:中国铁道出版社,2004.
• [3]汪旭光,于亚伦,刘殿中.爆破规程实用手册[M].北京:人民交通出版社,2004.
• [4]GB 6722—2003爆破安全规程[S].北京:中国标准出版社,2004.
• [5]付武,王永强,蒋金玉,等.120m高钢筋混凝土烟囱爆破拆除[J].工程爆破,2006,12(4):35-37.
• [6]王江平,王仕文,房泽法.复杂环境下银海大厦定向爆破拆除[J].工程爆破,2013,19(4):38-41.