重庆双碑大桥20cm超小间距双肢墩施工技术研究

Study on Construction Technology for Double-limb Pier with Super Small Distance of 20cm of Shuangbei Bridge in Chongqing

超小间距双肢墩柱施工时,由于墩柱间间隙非常狭小,如何设计墩柱间隙内的模板并进行施工是一个难题。在重庆双碑大桥主塔下墩柱的施工过程中,通过施工技术研究,发明了一种适应于超小间距双肢墩施工的模板体系和相应的施工方法,完成了20cm超小间距双肢墩柱施工,取得了较好的效果。该项技术获得了发明专利,对类似小间距双肢墩施工具有一定的参考价值。

The construction of double-limb pier with super small distance is often faced with the problems of template design and construction in the small distance space. In the similar case of Shuangbei Bridge in Chongqing, a sort of template system and corresponding construction methods applicable for double-limb pier with super small distance of 20cm are invented and good results are obtained. This technology is an invention patent. The case can offer some references for similar projects.