On Oct 9, 2022, the construction of the Shenzhen-Jiangmen high-speed railway, designed by the Fourth Institute of Railway and with the participation of the 11th Bureau of China Railway, 12th Bureau of China Railway, Bridge Bureau of China Railway Construction, 14th Bureau of China Railway and 25th Bureau of China Railway, officially started.

Deep river railway

Starting from the newly built Xili Station in Shenzhen, the Shenzhen-Jiang Railway connects Jiangmen Station of Jiangmen-Zhanjiang Railway to the west. The main line is 116 kilometers long, spanning the Pearl River Estuary and connecting Shenzhen, Dongguan, Guangzhou, Zhongshan and Jiangmen to five central cities in the Greater Bay Area. It is a trans-Pearl River express passenger channel connecting Shenzhen, Hong Kong and Zhuhai to the west. Among them, the Shenzhen Xili to Nansha section is designed to run at a speed of 200 km per hour, and the Nansha to Jiangmen section is designed to run at a speed of 250 km per hour, with a construction period of 5.5 years.

Across the bridge sui accounted for 98%, via water system developed along the lines of the pearl river delta region, through multiple channel grade, bridge condition is complex, the nansha respectively after standing along the cable-stayed spans HongQi waterlogging caused by excessive rainfall, chicken crow waterway, xiaolan waterway, the modaomen waterway, the tiger jump gate waterway, 200 meters above the mainspan super-large bridge across there is 5.

Designed by TieSiYuan mainspan 808 meters HongQiLi bridge is a key project across the board, the bridge is the world's first male iron & steel box girder of composite beams cable-stayed bridge, and TieSiYuan 12 bridge in a large bay area design of guangdong, in the design, they adopted a number of innovative technology, leading the large-span cable-stayed bridge and iron & technology development.

The 7th section of Shenzhen-jiang Railway, built by China Railway 11th Bureau, is located in Shenzhen and Dongguan of Guangdong Province. The main line is 12.09 kilometers long, and the construction content includes bridge, roadbed, tunnel and adjacent project. In order to build Shenjiang Railway with high standard and high quality, they compared the goal and requirements of "start is sprint, start is decisive battle", running approach, to ensure that planning a success, a right thing to do. At the same time, they promote the high quality construction of Shenjiang Railway with high quality party construction, and strive to build Shenjiang Railway into a "domestic leading, world leading" double first-class boutique railway and clean demonstration project.

Shenzhen-jiang Railway Bid 3 was built by China Railway 12th Bureau, and the bid section is located between Shenzhen Airport East Station and Dongguan Marina Bay Station. In order to complete the construction tasks such as the underground tunnel with a length of 3,860 meters within 12.451 kilometers, the shield tunnel with a length of 4,556.4 meters for Line 1, and the shield tunnel with a length of 3,590 meters for Line 2, they used a shield machine with a diameter of 12.4 meters for the construction of the two shield tunnels. In addition, they recruited management personnel with rich construction experience, outstanding management level and excellent professional technology, and set up a construction management team with comprehensive technology and the courage to take responsibility, and strive to complete all construction tasks with high quality.

China Railway Construction Bridge Bureau is mainly responsible for the construction of the 11th section of Shenzhen-Jiang Railway. The bid section is located in Zhongshan and Jiangmen cities. The total length of the line is 23.716 kilometers, with 4 Bridges of 23.716 kilometers, accounting for 100% of the bridge, and 485 holes of prefabricated and erected box beams. Builders run into the field, start with high standards and high quality, do excellent early planning, strengthen resource allocation, improve management system, create a good internal and external environment, to the standard "change style, change habits, raise standards, strive for the advanced" theme activity requirements, to build a demonstration project department.

The first bidding section of Shenjiang Railway, which was built by China Railway 14th Bureau, has a total length of 4.5 kilometers, and the Pearl River Estuary tunnel, as a control project, was the first to start construction. This is the deepest underwater shield tunnel, the shield long 3590 meters, maximum depth of 106 meters, the railway construction heavy industry developed jointly by China railway shisiju "deep river no. 1" to the construction of shield machine, the excavation diameter of 13.42 meters, the shield machine with double shield shell design, enhanced shield tail brush set 4, machine and maximum compression capacity not less than 12: This is the first time in the domestic shield machine industry, which greatly improves the adaptability of the shield machine under the ultra-high pressure on the sea floor. At present, the "Shenjiang No.1" shield tunneling machine has drilled 407 rings, with a cumulative progress of 814 meters.

The 12 standard construction tasks of Shenjiang Railway undertaken by China Railway No. 25 Bureau mainly include 13.41 kilometers of normal line, Jiangmen discharge line, Jiangmen moving line and depot front project, 455 holes of double-line beam, 92 holes of single-line beam frame beam and the whole track laying, etc. At present, they are to start the battle stance rapid deployment of resources, selection of technology backbone, to block the difficult point project tiger jump gate waterway bridge mainspan cable-stayed bridge steel truss and concrete composite beams is subject to promote innovation studio bridge construction and to strengthen professional and serialization personnel echelon construction, and with the help of the information platform construction to realize "digital river" applied research.

For the deep river railway was on the shenzhen xili east, dongguan, shenzhen airport marina bay, nansha, zhongshan station at the north, horizontal bar, jiangmen and other seven station, including jiangmen stands for both the station and the shenzhen xili stood six station for the new station, such as opening across the board, will further encrypt a large bay area of guangdong rail transportation network, great convenience of the people to travel along, It is of great significance to promote the economic and social development along the line and help the construction of the Guangdong-Hong Kong-Macao Greater Bay Area. Editing/He Yuting