石拱桥的爆破拆除

根据桥体的自身结构,结合周围环境,合理设计爆破拆除方案,并组织安全施工,成功地实现了326m长多跨石拱桥的安全拆除。在爆破过程中主要破坏其主要承重结构,如桥墩、拱顶和拱脚。对不同部位的炮孔装药量进行了计算和试爆,采用了非电微差复式起爆网络,保证了传爆的可靠性,也取得了很好的爆破效果。

Demolition of Stone Arch Bridge by Blasting

According to self-structure of bridge body, combined with surrounding environments, the blasting demolition scheme is designed reasonably, and safety construction is organized, therefore, the stone arch bridge with 326 m length and many spans are demolished successfully.The main bearing structures are destroyed in blasting, such as pier, vault and spandrel.The bore charges of different positions are calculated and trialed, the duplicate non-electricity delayed network which ensure security of detonation is adopted and some good blasting effects are obtained.