论文部分内容阅读
近日,湖南汝郴高速公路赤石特大桥实现首个合龙段精准合龙,为大桥的最终合龙提供了宝贵的施工经验和技术参数。赤石特大桥自2010年3月开工以来,成功攻克了超高索塔高性能泵送混凝土配合比优化技术、边跨无约束合龙段裂纹控制施工技术等多项技术难关。目前,大桥各项工程正有序向前推进,预计2014年年底建成通车。
Recently, the Hunan-Chenzhou Expressway Amethyst Bridge to achieve the first closing section of the precise closing dragon, the final closure of the bridge provided valuable construction experience and technical parameters. Since the start of construction in March 2010, the A-Shi Bridge has successfully overcome many technical difficulties such as high-performance pumped concrete with ultra-high pylon ratio optimization technology and construction technology of uncontrolled closure of cross-section cracks. Currently, the bridge project is moving forward in an orderly manner, is expected to be completed and opened to traffic by the end of 2014.