Non-plank construction method of bottom-supported tied arch bridge makes possible of uninterrupt or short time in terrupt of navigation, having very high social and economic benefits.

 
  • 下承式系桿拱橋無(wú)支架施工可以做到通航河流的不斷航或少斷航,具有很大的社會(huì )、經(jīng)濟效益。
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