At 8:40 PM on February 14, after 10 hours of continuous struggle, the first bored pile of the No. 4 main pier of the G3 Tongling Yangtze River Gongiron Bridge built by the China Railway Bridge Bureau was successfully poured, marking that the pile foundation project of the south main pier of the bridge has entered the comprehensive construction stage。

　 There are 64 drilled piles in G3 Tongling Yangtze River Gongtie Bridge No. 4 main pier. According to the friction pile design, the pile foundation is arranged according to the combination of linear and plum shape. Each drilled pile has a length of 79 meters and a pile diameter of 3 meters。According to Diao Xinguo, manager of the second branch of the G3 Tongling Yangtze River Highway and Railway Bridge, "The construction period of the G3 Tongling Yangtze River Highway and Railway Bridge is very tight, and the No. 4 main pier is one of the key control points of the whole bridge, the construction period is particularly tight, and we must strictly follow the plan。In order to complete the construction task of the foundation stage on time, during the Spring Festival holiday, many bridge builders gave up their small homes for everyone, stuck to their jobs, worked hard and worked overtime, and finally achieved a breakthrough in the construction of the No. 4 main pier。The successful perfusion accumulated valuable experience for the subsequent pile foundation construction, and also greatly encouraged the morale。”