Construction of Shanghai Rail Transit Line 16

On the morning of May 15, 2012, in the Zhibei parking lot of the Shanghai Rail Transit Line 16 project, construction workers slowly erected the first catenary pole of the Rail Transit Line 16 project. The Shanghai Rail Transit Line 16 contact rail (grid) II standard project contracted by China Railway No. 7 Electrical Engineering Co., Ltd. has officially started. This battle marks a new stage in the construction of Rail Transit Line 16. More than 100 people including leaders and builders from Pudong New Area, STO Metro Group, and China Railway Seventh Bureau attended the groundbreaking ceremony.

The construction scope of this bidding section is from Huinan East Station to Dishui Lake Station. The main line is about 32.12 kilometers long and has 5 stations. There is a Zhibei parking lot within the scope of this bidding section, which is introduced from Huinandong Station. It is expected that all installations of the project will be completed in December 2012. Among them, the contact rail (net) of the Zhibei parking lot will be completed in September 2012.

This project is the first contact rail power supply rail transit line in China with a designed maximum speed of 120 kilometers per hour.

On May 16, the Shanghai Rail Transit Line 16 Project Company held the sixth joint party and government meeting and mid-way promotion meeting to ensure safety and create high-quality products, and take effective measures to ensure that all project goals are on schedule. Complete remobilization and redeployment. The winning units in the "Three Comparisons" inspection in the first quarter of 2012 were commended. ***140 people from participating units and project companies of Line 16 attended the meeting. Su Zhixiong, Secretary of the Party Committee of Daqiao Company, attended the meeting and delivered a speech. Tang Honghua, Executive Deputy General Manager of Daqiao Company, presided over the meeting.

Su Zhixiong put forward three requirements on how to take effective measures to ensure that the project goals are completed on schedule: First, unify thinking and clarify goals. Each participating unit should determine its own decomposition tasks based on the overall goals of Line 16, and promptly adjust its work plans and content for the next stage. The second is to strengthen coordination and clarify responsibilities. Each participating unit must further refine their respective management responsibilities and implement their responsibilities. The third is to implement measures and pay close attention to management. All participating units should take effective measures to pool advantageous resources and overcome difficulties to ensure that the year-end target of Rail Transit Line 16 is achieved on schedule.

At the meeting, Zhao Qiang, deputy general manager of the Bridge Company, deployed the focus of the next phase of the Line 16 project. The Quality and Safety Department of the Bridge Company made comments on the quality, safety and civilized construction work of the previous stage of the project. The Engineering Department has laid out the 2012 project plan. Representatives from four units, including mechanical and electrical and decoration units, made exchange speeches respectively.

On May 28, 2012, after the hard work of the builders, the installation of the last prefabricated partition wall of Rail Transit Line 16 at No. 9 was completed. At this point, Rail Transit Line 16's "single hole and double line" "The central partition wall structure of the circular tunnel is connected throughout, laying the foundation for subsequent track laying and decoration engineering construction.

There is no mature design and construction experience at home and abroad to follow when constructing the intermediate partition wall structure in a "single-hole, double-lane" subway tunnel. Although the construction of the middle partition wall structure has a series of difficulties such as new technological processes, new machinery and equipment, narrow construction sites, and high assembly accuracy requirements, the units responsible for the construction of the middle partition wall structure have overcome many difficulties, adapted measures to local conditions, continued to innovate, and constantly explored. The construction of the central partition wall structure was completed safely and efficiently, and a record of 42 pieces was assembled by a single machine day and night.

The overall height of the partition wall structure in Line 16 is 7800mm, and the thickness is 300mm. It is a reinforced concrete structure with a strength grade of C40. The middle partition wall structure adopts the construction method of prefabricating the upper part, connecting the middle part with post-cast belt, and casting in-situ the lower part. There are a maximum of 6834 prefabricated blocks with a size of 5300x1490x300mm. Special robots are used for assembly and construction.

Rail Transit Line 16 uses underground lines in Huinan City and Lingang New Town, two areas with rapid urbanization. The underground line is 13.694 kilometers, using a diameter that is usually only constructed at the bottom of the Huangpu River. The 11.58m large shield is pushed forward with "single hole and double lines", and then the circular tunnel is divided into two parts with a middle partition wall structure in the tunnel space to form an up and down train running line.

On the morning of July 13, 2012, on the platform of Zhoupudong Station of Rail Transit Line 16, construction workers operated a bright yellow large track-laying machine, slowly moving two rails from the machine head position. It was pushed out, landed steadily in the middle of the booster rollers, and slowly extended forward, which marked the official start of track laying of Rail Transit Line 16.

High-speed rail technology is applied in subway track laying

In track laying, Line 16 has applied a number of high-speed rail engineering technologies. The construction unit China Railway 11th Bureau Group used high-speed rail CPⅢ measurement technology to establish a basic subway track control network, introduced imported fixed rail welding machines, 150-meter long rail replacement and other high-speed rail technology, effectively ensuring the rail welding quality and rail straightness. , track accuracy and line smoothness, improving the operational safety factor.

CPⅢ is a three-dimensional control network of foundation piles arranged in pairs along the line. It is mostly used for fine-tuning measurements in the construction of 250 to 350 kilometers of high-speed railway projects. It can maximize track accuracy and achieve stable track operation.

The 150-meter long rail paving process uses a complete set of rail welding equipment imported from Switzerland to weld the 25-meter short rail into a 150-meter long rail in a factory welding production base on the ground, and uses 10 group gantry cranes Hang to elevated track for laying.

These processes and technologies effectively ensure the quality and straightness of rail welding, the accuracy of the track and the balance of the line. They can reduce the number of hoisting and transportation operations in line construction, not only ensuring the quality of long-line rail welding, but also meeting the requirements. It meets the requirements for construction safety, and at the same time ensures the quality of the track line adjustment project, laying a solid foundation for improving later operation services.

Factory-based operations improve rail welding efficiency

Around the track laying construction of Rail Transit Line 16, a factory-based long rail welding production base was specially established for this line, which belongs to Rail Transit 16 The key control project of Line 1. The rail welding base adopts single-line streamlined and factory-based welding operations. The assembly line is about 300 meters long. It can store up to 10 kilometers of short rails and 17.5 kilometers of 150-meter rails at the same time. In addition to 12 gantry cranes, the base is equipped with In addition, it also has a complete set of long rail production equipment imported from Switzerland including rust removal brushing machine, fixed rail welding machine, grinding machine, fine grinding machine, etc.

The Shanghai Rail Transit Line 16 contact rail and communication project held the launching ceremony of the labor competition to "ensure safety, focus on quality, and build high-quality projects". More than 100 leaders and builders including Zhang Jiaqing, deputy general manager of the Rail Transit Line 16 Project Company, Zheng Xiaofei, secretary of the Youth League Committee of China Railway Electrification Bureau Group Company, Cao Li, deputy secretary of the party committee of the Urban Railway Company, chairman of the labor union, and secretary of the party working committee of the Shanghai Engineering Command Headquarters, and builders participated in the labor Competition launch ceremony.

Zhang Jiaqing mobilized from three aspects: safety, quality, and characteristics of Rail Transit Line 16, and required the two projects of contact rail and communication to formulate specific measures and plans around the theme of the event, and implement them into specific actions We will work hard and work hard to ensure that the goal of online commissioning of electric buses is achieved.

Cao Li asked the builders to implement the construction intentions of Shentong Group, actively carry out labor competitions with the theme of "ensuring safety, promoting quality, and building high-quality projects", and give full play to the pioneering spirit of the employees and the role of the youth commando team to ensure safety , improve quality, strictly abide by construction specifications, vigorously carry out technological innovation and QC research activities, continuously improve construction technology, improve project quality, create high-quality projects, and hand over a satisfactory answer to the people of Shanghai.

At the event site, members of the two young commandos of the Contact Orbit and Communications Teams were dressed in uniform uniforms and ribbons, lined up neatly, and accepted the review of leaders at all levels with heroic appearance. Two young commandos, Kuang Zhangbao and Yang Jianjiang, The captains received the Youth Commando flag respectively. After the flag was awarded, the Youth Commando captain led all the team members to take a safety and quality oath.

On September 16, 2012, the "Construction Acceptance Standards and Maintenance Specifications for the Contact Rail System of Shanghai Rail Transit Line 16 Project" compiled by China Railway No. 7 Electrical Engineering Co., Ltd. and China Railway Electrification Group were released at STO The Metro Group Technology Center held a technical review meeting. The review committee is composed of experts from STO Metro Group, Guangzhou Metro Corporation, China Railway Electrification Group, China Railway Electrification Survey and Design Institute and other units. The Shanghai Quality and Safety Supervision Station participated in the review process.

The writing team reviewed the "Shanghai Rail Transit Line 16 Project" from five aspects: standard preparation instructions, terminology introduction, contact rail system construction specifications, quality acceptance standards for contact rail system construction, and contact rail maintenance specifications. The "Construction Acceptance Standards and Maintenance Specifications for Contact Rail Systems" were comprehensively and detailedly elaborated.

The expert group conducted in-depth discussions on the above five pieces of content one by one and put forward valuable suggestions for revision.

The expert group formed a review opinion: "Shanghai Rail Transit Line 16 Project Contact Rail System Construction Acceptance Standards and Maintenance Specifications" combines the engineering technical characteristics, has a reasonable structure and detailed content, and carries out detailed construction technical requirements, quality acceptance and inspection and maintenance. It is stipulated that it can be used as the acceptance standard for the 120km/hDC1500V contact rail system project of Shanghai Rail Transit Line 16 and pass the technical review. It is also hoped that this standard can be continuously improved in engineering practice.

The standard covers three parts: construction specifications, acceptance standards, and inspection and maintenance. The successful passing of this technical review is the country’s first 120km/hDC1500V contact rail line - Shanghai Rail Transit Line 16 and even Shanghai. The contact rail system lines constructed in the future of rail transit provide standards and basis for construction, acceptance, inspection and maintenance, etc.

In 2012, the Line 16 project company held the seventh joint party and government meeting to deploy and explain the key points of the next phase of the Line 16 project. The participating units and project companies of Line 16*** 120 people attended the meeting. Su Zhixiong, Secretary of the Party Committee of the Bridge Company, presided over the meeting.

An anti-corruption education warning video was played at the meeting. Mei Xiaohai, electromechanical supervisory engineer of the Municipal Safety and Quality Supervision Station, communicated on the quality of rail transit electromechanical systems. Zhang Jiaqing, the company’s deputy general manager, read out the "Second Quarter of 2012" "Three Comparisons" inspection results and commendations, Deputy General Manager Zhao Qiang deployed the focus of the next stage of the electromechanical project of Line 16 and put forward corresponding work requirements on how to better complete the construction nodes and plans. China Railway Electrification Bureau No. 1 Company, China Railway Two units from the Seventh Bureau made exchange speeches respectively. Executive Deputy General Manager Tang Honghua put forward two requirements on how to take effective measures to ensure project safety and complete the Line 16 project as scheduled: first, to formulate and implement various management measures to ensure safety control; second, to implement various measures, Ensure project node goals are achieved on schedule.

A few days ago, Rail Transit Line 16 received another good news. The upper and lower lines of the 23.5-kilometer track project have been fully connected, laying the foundation for subsequent station decoration and equipment installation.

The 2nd track project of Shanghai Rail Transit Line 16, constructed by China Railway 24th Bureau Rail Transit Branch, starts from the A30 open section and ends at Lingang New City Station, with ***4 stations . The main track bed of this project has many forms, dense stations, long lines, and tight construction period. Since entering the construction site, the project department has introduced high-speed rail technology according to the needs of the project nodes, and integrated the concept of building quality projects into every construction detail. After consultation, Thanks to the continuous hard work and unremitting efforts of the construction staff, the expected project construction goals were efficiently completed.

On the morning of November 20, 2012, in the area of ??the Wildlife Park Station of Rail Transit Line 16, construction workers unloaded silver-white power rails about 15 meters long from the engineering vehicle, one by one. Installing it on the track bracket marks the official start of installation and commissioning of the contact rail project of Line 16. This project is constructed by the China Railway Electrification Bureau Group and is the first contact rail in China with a design speed of 120 kilometers per hour (three-rail ) Powered rail transit lines.

Different from the current flexible contact network power receiving method widely used in rail transit, the contact rail is a conductive rail installed next to the profiled rail to directly transmit electric energy to the train. It is connected with the running rail (two rails) ) parallel and vertical. After the contact rail is installed, it forms the third rail, also known as the third rail. Its characteristics are: simple structure, easy installation and maintenance; low failure rate and maintenance cost, and the use of three rails is less affected by the surrounding environment, which can relatively improve the wind resistance of line operation, and the line appearance is smooth, adding to the city Beautiful scenery.

Since the construction of Rail Transit Line 16 started on March 22, 2010, the builders have weathered the wind and rain and worked hard. They have completed all civil construction projects except Longyang Road Station to Luoshan Road Station. 2012 has entered During the track laying, station decoration, and electromechanical installation stages, builders will strictly abide by construction specifications, vigorously carry out technological innovation, continuously improve construction techniques, improve project quality, and create quality projects.

From November 23 to 25, 2012, the Shanghai Rail Transit Line 16 Engineering Vehicles and Electromechanical Equipment Localization Rate Review Meeting was held in Shanghai.

Gao Yucai, director of the Urban Rail Transit Professional Committee of the China Communications and Transportation Association, attended the meeting and put forward specific requirements for the review work. Bai Tinghui, Vice President of Shanghai Shentong Metro Group Co., Ltd., and Le Yanming, Director of the Shanghai Municipal Development and Reform Commission attended the meeting and delivered speeches. Shanghai Rail Transit Xie Jiong, general manager of Line 16 Development Co., Ltd., reported on the implementation of localization of engineering vehicles and electromechanical equipment for Shanghai Rail Transit Line 16.

At the review meeting, an expert group composed of 10 subway experts from Beijing, Guangzhou, Shenzhen and other places followed the relevant regulations of the Development and Reform Office of the National Development and Reform Commission, combined with the actual project, and in the spirit of seriousness, responsibility and seeking truth from facts. , reviewed the localization documents, contracts and "Classified List of Mechanical and Electrical Equipment, Supporting Assemblies and Parts" for the engineering vehicles and electromechanical equipment. After the efforts and cooperation of all parties and the review of the expert group, the localization rate of Shanghai Rail Transit Line 16 engineering vehicles and electromechanical equipment reached 78.84%, meeting the requirements stipulated by the National Development and Reform Commission, and successfully passed this review.