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针对商开高速公路京九铁路立交桥现浇段悬臂长 ,混凝土体积大的特点 ,支架选择了贝雷架支墩立柱预埋件法。
In view of the fact that the cast-in-site length of cast-in-site section of Jingjiu Railway overpass of Shangkai Expressway is large and the volume of concrete is large,