跨越既有高速公路钢箱梁顶推施工技术  

Top Push Construction Technology for Steel Box Girders Crossing Existing Highways

作　　者：王旭 Wang Xu(China Railway 19th Bureau Group Third Engineering Co.,Ltd.,Shenyang,China)

机构地区：[1]中铁十九局集团第三工程有限公司,辽宁沈阳

出　　处：《科学技术创新》2025年第10期175-178,共4页Scientific and Technological Innovation

摘　　要：以许昌绕城高速公路谢坊枢纽互通式立交工程为依托,研究互通式立交主线第二联跨越S83兰南高速钢箱梁顶推施工的总体方案、工艺原理、导梁安装、关键步骤及控制要点。结果表明,严格遵循施工步骤并把控施工控制要点是钢箱梁顶推施工成功的关键。研究成果可为类似钢箱梁顶推施工提供参考。Based on the Xiefang interchange project of the Xuchang Ring Expressway,this study investigates the overall plan,process principles,guide beam installation,key steps,and control points for the top push construction of the steel box girder of the second span of the interchange mainline crossing S83 Lannan Expressway.The results indicate that strictly following the construction steps and controlling the key points of construction control are the key to the successful construction of steel box girder jacking.The research results can provide reference for the top push construction of similar steel box girders.

关 键 词：高速公路 钢箱梁 顶推 施工技术 

分 类 号：TU448[建筑科学—岩土工程]