The five major engineering bureaus of China Railway Co., Ltd. recently jointly won the Jiangxi section of the new Changsha-Ganzhou high-speed railway, with a total bid amount of 17.27 billion yuan. This high-speed rail project across Jiangxi and Hunan provinces will pass through the old revolutionary area and become an important transportation artery connecting central and southern China.

The main line of the Jiangxi section of the Changjiang-Jiangxi high-speed railway has a total length of 297.573 kilometers, 9 stations along the line, 110.979 kilometers of new bridges and 157.986 kilometers of tunnels, and a bridge-to-tunnel ratio of 88.24%, setting a new record for domestic high-speed rail construction. The Second and Third Bureaus of China Railway, the Tunnel Bureau, the Eighth Bureau and the First Bureau will undertake the construction of five key bid sections, among which the control projects such as the Wugongshan Tunnel and the Jinggangshan Tunnel Tunnel are particularly eye-catching.

"This is not only a recognition of the technical strength of China Railway, but also a responsibility to serve the development of the old revolutionary area." The relevant person in charge of China Railway said. After the completion of the project, it will realize the rapid connection between the western Jiangxi region and the Changzhutan urban agglomeration and the Guangdong-Hong Kong-Macao Greater Bay Area, greatly improving the travel efficiency of more than 20 million people along the route.

It is worth noting that the project includes a large number of tunnel groups under adjacent existing lines and complex geological conditions. Among them, the CGJXZQ-3 section needs to complete 317 kilometers of track-laying tasks, and the CGJXZQ-9 section undertakes the comprehensive transformation of the Ganzhou hub and other final projects. All participating units have set up an elite team to use intelligent construction technology to overcome construction problems.

As an important part of the national "eight vertical and eight horizontal" high-speed rail network, the Changjiang high-speed railway is expected to be completed and opened to traffic in 2027. At that time, the travel time from Changsha to Ganzhou will be shortened to less than 2 hours, injecting strong impetus into promoting coordinated regional development. China Railway said that it will build the project into a demonstration project for the revitalization and development of the old revolutionary area in the new era.(This article is from the official website of Jiandao www.seetao.com it must not be reproduced without permission, otherwise it will be investigated, please indicate the reprint of Jiandao.com + original link) See the editor of the infrastructure engineering column of Jiandao.com/Gao Xue