The reporter learned from China Railway 16th Bureau Group Co., Ltd., that with the accurate erection of the last box girder at the Oucun hub, all 4 hubs on the Guangxi Yuyi Expressway have been completed on the main line, breaking through a key blockage for the entire line. The Yuyi Expressway has a total length of about 115 kilometers from Yufeng District in Liuzhou City, Guangxi to Yizhou District in Hechi City. It is an important part of Guangxi's “Horizontal Five Line” expressway network. The Oucun hub that was completed this time is located in the karst geological development area. The foundation treatment is difficult and risky. At the same time, the line is close to the highway that has already been opened to traffic, making it one of the most difficult control projects to construct the entire line.

The reporter learned from China Railway 16th Bureau Group Co., Ltd., that with the accurate erection of the last box girder at the Oucun hub, all 4 hubs on the Guangxi Yuyi Expressway have been completed on the main line, breaking through a key blockage for the entire line. The Yuyi Expressway has a total length of about 115 kilometers from Yufeng District in Liuzhou City, Guangxi to Yizhou District in Hechi City. It is an important part of Guangxi's “Horizontal Five Line” expressway network. The Oucun hub that was completed this time is located in the karst geological development area. The foundation treatment is difficult and risky. At the same time, the line is close to the highway that has already been opened to traffic, making it one of the most difficult control projects to construct the entire line.