润扬大桥悬索桥基础结构的技术创新

Technical Innovations of Foundation Structures of Runyang Bridge Suspension Spans

润扬长江公路大桥作为我国长江上第一座由悬索桥和斜拉桥组合而成的特大型桥梁,工程规模大、技术含量高。在悬索桥基础施工中,应用了排桩冻结法、深基坑千吨钢套箱的整体吊装等施工、测试技术,并在全桥全面推广使用了低碱水泥。

Being the first major bridge comprising both suspension spans and cablestayed spans over the mighty Changjiang River in China, Runyang Changjiang River Highway Bridge is a project that is large in scale and is of high technical content. During the construction of the foundations of the suspension spans, the pile bent freezing method, techniques of integral lifting, installing and measurements of 1000ton steel boxed cofferdam in deep foundation pit are used, and utilization of lowalkali cement is widely popularized to the whole project of the Bridge.