Machine-made artificial sand is used in high-speed rail construction

2022-02-24

Recently, as the last hole of the machine-made artificial sand prefabricated box girder of the Guizhou Di’e Shuangxian Bridge accurately and slowly fell to the No. 5 pier and No. 6 abutment, it marked the construction of the Guizhou (Yang) Nan (Ning) ) The erection task of the 5-standard box girder of the Guizhou section of the high-speed railway has been completed, becoming the first tender section of the Guizhou section of the Guizhou high-speed railway to complete the erection task, and has entered the ballastless track construction in an all-round way.

“In the process of erecting beams, the project has overcome the influence of many unfavorable factors such as many tunnels, long transportation distances, and multi-process staggered construction.” Meng Yuan, deputy chief engineer of the 5th bid in Guizhou Section, introduced that in order to ensure the completion of the beam erection task on time, the Guizhou Section 5. Completion of the Dushan South Beam-making Field covering an area of ​​217.92 mu has successively obtained the first prefabricated box girder of the Guizhou section of the Guinan Railway, the first Class 2.5 destructive static load test of the prefabricated box girder of China’s high-speed railway, and the first one to pass the national production license Certification, first hole box girder erection and many other firsts.

The newly built Guiyang-Nanning Railway is an important section of the Baotou-Haikou channel, the main high-speed railway channel planned in China’s medium and long-term railway network, and is also a high-speed railway with a designed speed of 350 kilometers per hour in Southwest China. It is expected to be put into operation by the end of 2023.