The towers of the Yangmeizhou Bridge is a single-pillar shape and its height is 181 meters, which is the highest building in Xiangtan City. This research focuses on several significant problems during construction, including how to prevent bored piles collapsing hole when existing large karst caves, how to improve piling efficiency of composite piles when existing many cobbles, how to assemble a large-diameter and double-wall steel cofferdam in deep water, how to control the temperature of mass concrete in summer, how to apply climbing formwork according to variable sections of towers, how to install cable ducts and steel anchor beams with high precision. These findings provide necessary guide and reference for similar bridge engineering.

CICTP