爆破拆除钢筋混凝土与浆砌石复合结构老桥基础

Blasting Demolition of the Old Bridge′s Foundation with Reinforced Concrete-slurry Complex Structure

钢筋混凝土-浆砌石复合结构体的爆破拆除很少见报道,结合蜈蚣桥墩基础爆破拆除实例,借鉴填埋药包爆破法思路,通过适当增加钢筋混凝土部分的炸药单耗,以达到爆破破碎钢筋混凝土部分的同时,使得浆砌石部分也能得到有效破坏,从而实现对钢筋混凝土-浆砌石复合结构体的爆破拆除。

According to a practical example that the foundation of Wu-Gong bridge is demolished by blasting, the idea of filled-charge blasting is used for reference, hy increasing properly the charge in the part of the reinforced concrete foundation. In order to effectively demolish the part of slurry stonelaying, the part of the reinforced concrete base is demolished to realize the blasting demolition of the reinforced concrete-slurry complex structure.