At 16:36 on March 19, the pouring of No. 49 drilled pile on the No. 3 main pier of the G3 Tongling Yangtze River Gongrailway Bridge, undertaken by the China Railway Bridge Bureau, was completed. So far, the construction of the main pier pile foundation has completed 34 pieces, accounting for 50% of the total。

　 "We resolutely implement the relevant deployment of the Party Central Committee and local governments, grasp epidemic prevention and production, and orderly and steadily promote the construction and production of the site on the premise of doing a good job of various epidemic prevention measures.。China Railway Bridge Bureau G3 Tongling Yangtze River Railway Bridge project division chief engineer Song Haitao introduced，The first branch has taken measures such as increasing drilling equipment, optimizing construction technology, deploying talented troops and ensuring material supply，Since March, the average construction has reached a new record of 1 pile per day，It provides reliable time guarantee for the subsequent construction of cofferdam and cap。"G3 Tongling Yangtze River Railway Bridge is the world's first double-deck cable-suspension cooperation system bridge, pier 3 and pier 4 are the two main piers of the bridge, carrying 988 meters of the main span across the river。China Railway Bridge Bureau G3 Tongling Yangtze River Railway Bridge project branch technician Wang Kang introduced that the No. 3 main pier has a total of 68 drilled piles, each pile diameter 3.The pile length is 95 meters and the hole depth is 122 meters.5 meters, depth of about 71.4 meters, adopt rotary drilling and grading reaming drilling technology construction。

　 G3 Tongling Yangtze River Highway and Railway Bridge is one of the river crossings planned in the Yangtze River Trunk Line Crossing Passage Layout Plan (2020-2035)，It is a key project to implement the national "Belt and Road", Yangtze River Economic Belt and Yangtze River Delta integration development strategy，It is also a major infrastructure construction project in Anhui Province，Tongling is based on the Yangtze River Economic belt，It is an important project to accelerate the integration into the Hefei metropolitan area and the Yangtze River Delta。After the completion, it is of great significance for building a copper development belt, comprehensively promoting the construction of international cultural tourism demonstration zone in southern Anhui, accelerating the coordinated development of regional economy, strengthening the interconnectivity of the Yangtze River Delta, and building a modern comprehensive transportation system。