南珠高铁玉林北至岑溪东段途经桂东地区，全线共有22座隧道、65座桥梁，桥隧比达84.4%。截至目前，南珠高铁玉林北至岑溪东段桥梁、 隧道等工程已全部完成。 12月20日，铺轨机在北流市境内施工（无人机照片）。新华社记者 张爱林 摄 新华社南宁12月20日电（记者梁舜）12月20日，在广西北流市境内的南珠高铁玉林北至岑溪东段铺轨施工现场，铺轨机将首对500米长钢轨 平稳铺设在无砟道床板上，这标志着南珠高铁玉林北至岑溪东段进入全线铺轨阶段。 12月20日，南珠高铁玉林北至岑溪东段开始全线铺轨（无人机照片）。新华社记者 张爱林 摄 南珠高铁玉林北至岑溪东段项目由广西交通投资集团投资建设、国铁南宁局代建，线路西起玉林北站，向东经北流市、容县，终至岑溪东 站，正线全长84.895公里，设计时速350公里，设玉林北、容县南、岑溪东3座车站，其中容县南、岑溪东为新建车站。 南珠高铁玉林北至岑溪东段为南珠高铁南玉段的延伸工程，是广西全面融入粤港澳大湾区的重要工程。南珠高铁全线建成通车后，将进一步 完善区域综合交通体系，对广西打造粤港澳大湾区重要战略腹地、推动广西北部湾经济区和粤港澳大湾区"两湾联动"具有重要意义。 南珠高铁玉 ...

Core Points - The completion of the last box girder placement for the Yucen section of the Nanzhu High-speed Railway marks a significant milestone in the construction process [1][3] - The Yucen section spans 20.9 kilometers and includes various engineering works such as bridges, tunnels, and roadbed [3][4] - The project aims to enhance transportation conditions in the eastern Guangxi region and facilitate economic development in the Beibu Gulf Economic Zone and the Guangdong-Hong Kong-Macau Greater Bay Area [4] Construction Progress - The construction of the Yucen section has reached a critical phase, with 99.7% of the earthworks completed, 98.1% of the bridge works finished, and 100% of the tunnel works completed [3] - The project includes 21 bridges totaling 7.61 kilometers and requires the installation of 157 box girders [3] - The construction team has effectively managed the schedule and safety protocols to overcome challenges such as tight deadlines and long single-line transport distances [3] Project Significance - The Nanzhu High-speed Railway is a key infrastructure project that connects the Guangxi region to the Greater Bay Area, with a total length of 110.309 kilometers and a design speed of 350 kilometers per hour [4] - The completion of this railway is expected to improve regional transportation, enhance the quality and capacity of the transportation corridor between Guangxi and Guangdong, and stimulate economic growth along the route [4]