摘要
在对周边环境复杂的双曲空腹式拱桥大桥进行拆除时,为减少有害效应,采用了机械和爆破相结合的拆除方法;针对结构不明的桥体,通过桥面垂直地质钻孔、桥墩水平钻孔、表层剥离、现场测量等方法,进行精细化爆破设计与施工。采用综合防护手段,既经济快速又安全可靠,能够取得良好效果。
In order to control harmful effects of a demolition project of a double curved arch bridge with complicated surrounding situations,mechanical method and blasting method are combined.A blasting plan is carefully designed,which includes vertical geological drilling on the bridge deck,horizontal drilling in the bridge piers,surface stripping,and field measurement.Comprehensive protection is adopted to ensure the fast,safe and reliable demolition,which has proved effective.
作者
傅荣璋
严振豪
李晓东
FU Rong-zhang;YAN Zhen-hao;LI Xiao-dong(Guangdong Blasting Engineering Co.,Ltd.Guangzhou 510700,China)
出处
《广东水利电力职业技术学院学报》
2018年第1期19-22,共4页
Journal of Guangdong Polytechnic of Water Resources and Electric Engineering
关键词
复杂环境
桥梁拆除
爆破防护
complicated surrounding situations
bridge demolition
blasting protection
