摘要
为实现桥体充分解体,在保证桥梁整体结构稳定的前提下,在箱梁顶部开了12个切割槽,极大方便了箱梁下部装药,同时采用孔外延时排间微差爆破技术,桥下预先铺设防护沙袋,有效的降低了塌落体的触地振动,取得了理想的爆破效果。
In order to make the bridge disintegrate completely,and ensure the stability of the overall structure of the bridge. In this premise,12 cutting grooves were opened at the top of the box girder,it greatly facilitates the loading of the lower part of the box girder. At the same time,the use of inter hole delay,inter row millisecond blasting technology,laying sandbags under the bridge,effectively reduce the ground motion of falling bodies. The ideal blasting effect has been obtained.
引文
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