The second phase of Chengdu Rail Line 19, which is connected to the dual airport

Cover reporter Yang Ruiwen

On July 29th, the last pair of rails of the second phase of Wenjiashan Station-Muhua Road Station of Chengdu Metro Line 19 was in place, marking the entire "short track" of the project, and hand over another stage "transcript" Essence

Open 25 rail paving work surfaces

More than 2100 workers work at the same time

During the rail construction process, "short rails" refer to the laying of a 25 -meter -long standard rail of a section of a section, forming a continuous track. When these steel rail seamlessly welded, the "long track" was achieved. As the iconic node of rail paving operations, the "short rails" have been successfully realized to create construction conditions for subsequent professional construction and vehicle debugging. A solid foundation.

The second phase of Chengdu Metro Line 19 is an important rail transit line that connects Shuangliu International Airport and Tianfu International Airport. After the line is opened, it can expand the core area of ​​Tianfu New District to double -flow and Wenjiang, which is of great significance for Chengdu to build an international comprehensive transportation hub.

"During the construction process, we need time and efficiency in terms of process connection, resource investment, process innovation." Relevant person in charge of the construction of the second phase of Line 19 said that Chengdu Rail Group organizes the overall organization of China Electricity Construction and other participating units. Based on the live conditions, optimize the sequence of work, constantly adjust the rail paving construction plan, and create the construction conditions of Shuangjing Rail paving as much as possible to minimize the construction period; coordinate the construction unit to increase personnel and equipment investment. More than 2100 workers work at the same time, and invest more than 220 rail paving equipment (sets) to effectively ensure the construction progress. At the same time, the construction process is innovative. Rotation verification, finally determine the optimal equipment selection scheme and concrete transportation scheme to effectively ensure the quality of construction.

The highest design speed of domestic urban rail transit

The rail paving adopts high -speed rail technology

The quality of rail paving directly determines the safety and comfort of passengers after operation. "The design speed of the second phase of the Chengdu Rail Transit Line 19 is 160 kilometers per hour, which is the highest design speed of the current domestic rail transit in the country. Cars comfort. During the construction process, we strictly observe the materials and acceptance of materials, concealed engineering acceptance, concrete pouring, etc. to ensure the implementation of quality targets; Precision measurement technology, precision detection and high precision adjustment of the track surface elevation, direction, horizontal, and spacing of the rail surface; and use a variety of high -precision technologies such as hierarchical vibration reduction and noise reduction measures, configure medium, high, and special vibration reduction. Ensure the installation quality of road fork components and ensure the smooth operation of the train.

"At the peak of the construction peak of the second phase of Rail Transit Line, more than 2,100 people operated at the same time at the same time, and put forward new challenges for the safety management and epidemic prevention and control of the operation of the rail area." On the one hand, the safety risk monitoring system is adopted for full -time online supervision inspections, and daily offline inspections and rail area inspection and management are strengthened to strictly control the hidden dangers of construction risks. On the one hand The fields of flat and hardening, construction site partition management, and emergency materials allocation have been fully implemented in comprehensively implementing standardized construction, and acceptance is performed to ensure that the construction is safe and controllable.

At the same time, in response to the current severe epidemic prevention and control situation in Chengdu, through the combination of "normalized epidemic prevention+dynamic investigation", through strengthening closed -loop management, strict itinerary inspection, organizational nucleic acid testing, implementation of the frequency of disinfecting, reserve epidemic prevention materials, etc. Measures, effectively build an epidemic prevention and control barrier, and ensure continuous construction and rapid advancement of projects under construction.

At present, the second phase of Line 19 is promoting follow -up projects such as the installation and decoration of electromechanical equipment in an orderly manner in accordance with the overall project of the entire line.

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