赤石大桥关键技术研究及对策

The Research on Key Technologies and Countermeasures for Chishi Bridge

赤石大桥桥址位于湖南省宜章县,大桥建设条件复杂,造型设计新颖,工程难度大,具有多塔、大跨、高墩的特点。为解决大桥设计和施工中的技术难题,对超高墩大跨多塔预应力混凝土斜拉桥结构体系、复杂岩溶地区桥梁基础选型及施工工艺、双曲线索塔设计及施工技术等关键技术进行了研究和探索。

Chishi Bridge, is located in Yizhang county, Hunan province, within poor geologic condition, original structural design and construction difficulty. The bridge has high pies, long spans, and multi-towers. The challenges in design and construction of the bridge will be overcome, based on re- search for high pies, long spans, and multi-towers pre-stress concrete cable-stayed bridges structural sys- tem, research for foundation types selection and foundation construction in developing karst areas, and research for design, mechanic theorY and construction of hyperbolic towers.