From January to March this year, the fixed asset investment of the railway project under construction in Sichuan under the management of Chengdu Bureau Group Company completed 11.7 billion yuan, the construction of key projects such as the Chongqing-Kunming high-speed railway and the Chengdu-Chongqing middle line high-speed railway is progressing smoothly, and the construction of a modern railway infrastructure system in Sichuan Province has been accelerated.
Banan high-speed railway and Lanyu railway in Nanchong
On March 25th, the ball hinge of the first rotating bridge of the Chengdawan high-speed railway was successfully installed; on March 28th, the first sleeper of the intelligent double-block sleeper factory of the Chengdawan high-speed railway was officially rolled off the assembly line; on March 30th, the first cross-highway continuous beam block 0 of the Chengdawan high-speed railway was successfully poured, creating conditions for the follow-up work of the bridge.
The vision turned to the western Sichuan Plateau, and the Xining-Chengdu railway is also speeding up, and the construction site of the Mamoke No. 2 tunnel, a major and difficult project, is hot.
Slag removal is underway in the No. 2 Mamoke Tunnel of the Xining-Chengdu Railway
Due to the adverse geological influences such as active fault zones and weak surrounding rocks, the Mamoko No. 2 tunnel adopts large-scale mechanized supporting organization construction, with a three-arm rock drilling rig as the core, to comprehensively improve the construction efficiency. At present, 370 meters of Tunnel Mamoko 2 have been excavated.
At the same time, the Chongqing-Kunming high-speed railway from Chongqing west to Yibin east has entered the sprint stage of track fine adjustment, station decoration, and "four electricity" construction. More than 210 capable forces have been dispatched to the Yibin Industrial and Electrical Section to carry out synchronous construction with the construction unit, and 353 kilometers of ballastless track of the line have been fine-tuned, and 68 groups of turnouts have been fine-tuned. The staff of Luzhou East Railway Station and Nanxi Station actively participated in the preliminary intervention work of the Chongqing-Kunming high-speed railway from Chongqing West to Yibin East, and conducted on-site inspection and acceptance of waiting rooms, platforms, travel service facilities and equipment.
The workers of the Yibin Industrial and Electrical Depot are fine-tuning the data of the turnout equipment of the Chongqing-Kunming high-speed railway
In the Sichuan-Yunnan section of the Chongqing-Kunming high-speed railway, the 7 standard of the Chongqing-Kunming high-speed railway of China Railway Eighth Bureau widely uses the "four new" technology to continuously improve the work efficiency under the premise of standardized construction. At present, 5 of the 10 tunnels in this section have been penetrated, and the cumulative excavation has been completed 13.3 kilometers. Among them, the Yunlian Tunnel has been excavated 4,295 meters, with an average monthly excavation of 130 meters.
On April 2, the Banan high-speed railway started the joint debugging and joint test and entered the critical stage of project acceptance. The Dazhou Power Supply Section cooperates with the Banan High-speed Railway Project Department of China Railway Electrification Bureau to analyze and compare the inspection data of the inspection vehicles every day, and eliminate the unqualified data to ensure that the power supply equipment of the whole line meets the standards.
Banan high-speed railway and Lanyu railway in Nanchong
The Suining Public Works Section has fine-tuned more than 300 kilometers of tracks and flaw detection of rails and welds, so as to comprehensively improve the quality of line equipment. Chongqing North Railway Depot and Guangyuan Railway Depot organized business training and emergency drills in advance, arranged personnel to check the operation path of the inspection vehicle, the closure of the station area, and the light floating objects along the line one by one, and carried out off-road safety publicity by entering the township and village.
At the construction site of Shiling South Station, Chengdu hub of Chengdu-Chongqing Central High-speed Railway, another key project in the construction of the Chengdu-Chongqing Economic Circle, the builders are carrying out the construction of the cushion cap and pier body of the extra-large bridge that crosses the east-west axis avenue in Chengdu. At present, the construction has successfully broken through from the "underground" to the "ground".
It is understood that in 2024, the railway construction task in Sichuan Province will be heavy, and the Chongqing-Kunming high-speed railway from Chongqing west to Yibin east, the Sichuan-Qingdao railway from Zhenjiangguan to Huangshengguan and the Banan high-speed railway are expected to be completed and opened to traffic.