山区桥梁混凝土空心薄壁高墩施工技术

Construction technology of concrete hollow thin-walled high piers in mountainous bridges

宜昌香溪长江大桥主桥为531. 2 m全推力中承式钢箱桁架拱桥,其交界墩为70 m空心薄壁高墩,针对山区施工特点,墩身采用悬臂模板施工技术,有效地提高了山区高墩的工程质量及施工效率。

The main bridge of Yichang Xiangxi Yangtze River Bridge is a 531.2 m full-thrust mid-support steel box truss arch bridge. The junc- tion pier is 70 m hollow- thin-walled high pier. For the construction characteristics of the mountainous area, the pier body adopts cantilever form- work construction technology. Effectively improve the engineering quality and construction efficiency of mountain high piers.