浅析钢筋混凝土空腹拱桥拆除方案

Brief Analysis on Demolition Scheme for Reinforced Concrete Spandrel-braced Arch Bridge

对某高速公路1-55m钢筋混凝土拱桥因不能满足立交区匝道、变速车道布设要求,需拆除重建。对机械拆除和爆破拆除两种方案进行综合对比,结果表明,爆破拆除在造价、保通方面均具有优势,推荐使用,方案比选步骤可供同行参考。

Due to the reason that 1 -55m reinforced concrete arch bridge of an expressway fails to meet therequirement of layout for interchange or speed change lane, it is necessary to perform the demolition andreconstruction. The comprehensive comparison for two kinds of schemes like mechanical demolition and blastingdemolition is made. The results show that, the blasting demolition is recommended to use with merits in aspects likeconstruction cost, traffic guaranteeing, so as to provide reference for the scheme comparison step.