摘要
结合浦东国际机场北通道—A20互通式立交工程设计实例,对其所涉及关键技术进行分析研究。A20互通式立交选择的"全涡轮+菱形组合型"立交总体方案及"合并出、入口按照两级分、合流设计"的匝道接入(引出)方案、钉形水泥土双向搅拌桩软基处理技术、"OGFC排水路面+同步碎石防水封层"的排水沥青路面、"蝶形"大挑臂圆弧形连续箱梁及"黄金分割"融入桥梁景观设计等关键技术在国内均具有技术先进性和实用价值。
In combination with the design example of Pudong International Airport＆#39;s north passageway---the A20 interchange bridge, this paper analyzed and researched the relevant key technologies. It can be seen that the key technologies adopted in the A20 interchange bridge are of advanced technology and practical value in China, they are as follows： the overall interchange plan of“whole turbine type plus rhombus combination”, the ramp inlet and outlet plan of“merged entry and exit by two grades of split-flow and inter-flow”, the soft subsoil treatment measure of T-shaped bidirectional soil-cement mixing piles, the drainage asphalt pavement of“OGFC drainage pavement plus waterproof synchronized gravel seal coat”, the butterfly-like curved continuous box girder with big cantilever, the bridge landscape design with“golden section” concept, and so on.
出处
《铁道标准设计》
北大核心
2014年第5期69-73,共5页
Railway Standard Design
关键词
互通式立交桥
总体方案
水泥搅拌桩
排水沥青路面
蝶形箱梁
景观设计
interchange bridge
overall plan
cement mixing pile
drainage asphalt pavement
butterfly-like box girder
landscape design
