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济南至祁门高速公路淮河特大桥引桥采用预制空心墩,该空心墩为国内直径最大、长度最长的双层钢筋空心圆柱形墩柱,墩底设置定位墩。该预制空心墩传力途径明确、造价低、加工制造质量稳定、安装方便很大程度上解决了现场施工进度慢、受环境限制多的问题,本文从具体高速公路项目入手,介绍了预制空心墩施工工艺,详细介绍了预制空心墩施工技术,重点安装控制要点,并对该种施工方法进行了总结。
Prefabricated hollow piers are used for the approach bridge of Huaihe Super Bridge from Jinan to Qimen Expressway. The hollow pier is the double-reinforced hollow cylindrical pier with the largest diameter and the longest length in China. The pier is provided with pier. The prefabricated hollow piers have a clear way of force transmission, low cost, stable manufacturing quality and easy installation. To a large extent, the problems of slow construction site and limited environment are solved. This paper starts with the concrete expressway project, introduces precast hollow pier Construction technology, introduced in detail the construction technology of prefabricated hollow pier, the key points of installation control, and the construction methods were summarized.