高速公路拱型跨线天桥控制爆破快速拆除方法

Rapid Demolition Method for Controlled Arch Bridge Blasting of Arch Overpass on Expressway

介绍了在临时封闭高速公路交通的环境中,在短时间内采用控制爆破技术快速拆除高速公路拱型跨线天桥,并迅速恢复交通的实例,对工艺流程、爆破切口、孔网参数、起爆网路、安全防护措施等技术设计内容进行了详细的阐述,取得了理想的爆破效果,为类似工程提供借鉴。

This paper introduces a case of demolishing arch bridge overpass of expressway by controlled blasting technology in a short time and restoring traffic quickly in a temporary closed expressway traffic environment.The technological design contents such as technological process,blasting cut,hole network parameters,detonating network and safety protection measures are described in detail.Detailed description is made,and the ideal blasting effect is obtained,which provides reference for similar projects.