下穿重载高速公路箱型桥施工技术

Study on construction techniques of frame bridge under crossing the heavy duty expressway

通过箱型桥施工实例,探讨了重载交通路基防护技术、箱型桥桥体顶进滑移及就位控制技术、石蜡机油滑石粉润滑技术、水稳性材料台背回填技术、中央分隔带防护等技术在箱型桥施工中的应用。

In this paper, the contruction technique of frame bridge is studied. The techniques of the heavy duty subgrade protection, the controlling techniques of frame bridge jacked and positioned, the lubrication technique with paraffin wax, engine oil and talc powder, the technique of refilling in the back of abutment with the good material in water stability and the protection of the medial reserve are studied.