1, Qinling tunnel. The total length of the Qinling Tunnel on Xikang Railway is 18km, which was started on 1995 and completed in 2005. Upon completion, it is the longest railway tunnel in China and the second longest railway tunnel in Asia. China Railway Corporation has independently completed about 60% of the whole tunnel, which is the first time in the construction.
The tunnel boring machine was used, and it won the Luban Award for architectural engineering, Zhan Tianyou Award for civil engineering and the first prize for national scientific and technological progress. 2. Dayaoshan Tunnel. Dayaoshan Tunnel on Heng-Guang Double Track, with a total length of 14km, started in19,81year and was completed in19,89. When completed, it is the longest double-track electrified railway tunnel in China. China Railway Corporation independently built the whole tunnel, and used the NATM principle to build the extra-long mountain railway track for the first time in the construction, and won the national special prize for scientific and technological progress.
3. Nanjing Yangtze River Bridge. Nanjing Yangtze River Bridge is the second railway and highway bridge across the Yangtze River in China. The total length of railway bridge is about 6772 meters, and the total length of highway bridge is about 4589 meters. 1960 started and 1968 was completed. The construction of this bridge is extremely complicated. China Railway Corporation independently undertook all the tasks and won the National Science and Technology Progress Special Award and the National Science Conference Award. 4. Beijing-Kowloon Railway. It is one of the main railway lines connecting North China and South China, Beijing and Shenzhen, and Hong Kong Kowloon-Canton Railway. The total length is about 2397 kilometers. 1993 started and 1996 was completed. China Railway Corporation independently undertook about 60% of the whole project, and won the Luban Award for Construction Engineering and the National Gold Award for Quality Engineering.
highway
China Railway Corporation is an excellent enterprise in the domestic highway construction industry. Its 1 subsidiary has the special qualification of highway construction general contracting enterprise, and the other 36 subsidiaries have the first-class qualification of highway construction general contracting enterprise. Since the beginning of highway construction in 1980s, the total mileage of highway engineering has reached more than 7,400 kilometers, including more than 3,400 kilometers in expressway, more than 0.494 kilometers in highway bridge 1. 1 15 kilometers in highway tunnel. Since the Tanzania-Zambia railway project with a length of 1, 86 1km was built in 1970s, more than 230 overseas projects have been built in 55 countries and regions including Africa, South America, Middle East and Southeast Asia. As of June 30, 2007, China Railway has established 96 overseas business organizations in 52 countries and regions on five continents, and there are 10 projects under implementation.
2065438+On the evening of May 2, 2005, KLOC-0, China Railway Corporation announced that its wholly-owned subsidiary, China Railway Tunnel Group Co., Ltd., formed a joint venture with an Israeli company and successfully won the bid for the west section of TBM section of Tel Aviv light rail red line project in Israel. The participation of China enterprises in the implementation of this project will promote the export of design consultation and equipment in China, which is of great significance for opening up overseas markets.
This project is a part of the 23km red line project of Tel Aviv light rail system planned by Israel, including six underground stations, a 2× 5.5m TBM tunnel and a 65,438+06 crossing. The total budget of the project is about 3 1 100 million shekels (about 4.99 billion RMB), and the source of funds is allocated by the Israeli government. According to the agreement between the two parties to the joint venture, China Railway Tunnel Group holds 565,438+0% equity of the joint venture company. At present, the joint venture company is negotiating on the internal division of labor. 2011On July 29th, the relevant person in charge of the State-owned Assets Supervision and Administration Commission confirmed to the reporter that the Polish expressway project led by China Overseas Engineering Corporation (hereinafter referred to as China Overseas) failed because China Overseas lost all its assets and was facing a claim. The State-owned Assets Supervision and Administration Commission (SASAC) has investigated the responsibility of its parent company, China Railway Corporation (hereinafter referred to as China Railway), and ordered China Railway to conduct an inventory of China and overseas. "There are two reasons for the failure of the project, one is that China overseas underestimated the cost price of the project, and the other is that Polish suppliers jointly raised prices to ban China overseas," the source said.
In September 2009, China won the bid for the construction of a Polish section of expressway overseas, which was the first construction project officially delivered to China by the EU countries. However, this is China's first construction project in the EU. However, because China Overseas did not accurately estimate the project cost, and Polish suppliers joined forces to raise prices to block China Overseas, the actual cost was much higher than the bid price, and China Overseas was finally forced to stop work. Fang Yuanming, the general manager, has been removed from his post, mainly because the Polish expressway project led by China failed overseas. The State-owned Assets Supervision and Administration Commission (SASAC) has entrusted the audit institution of China Overseas Beijing Headquarters to conduct independent audit.
China Overseas is a wholly-owned subsidiary of China Railway. As the "flagship" of China Railway's overseas business, China Overseas is the first state-owned enterprise in China to enter the international project contracting market and export labor services. The Polish project is located in A2 expressway, Viskitki County, Matsov Province, Poland. It is led by China Overseas, and the consortium consisting of China Railway Tunnel Group Co., Ltd., Shanghai Construction Engineering Group and Poland Bekoma Co., Ltd. won the bid.
At that time, the Polish budget for the project was 2.8 billion zlotys, while China's offer was only 654.38+0.3 billion zlotys. Polish officials have been supporting China to build expressway because of the price problem, and Polish Infrastructure Minister Gra Ba?ík even told the media that "we believe in the speed of China".
20 1 1 In mid-May, China Overseas Consortium was forced to stop work due to the subcontractor's default in the project payment. Due to various reasons, such as out-of-control cost management and failure to obtain compensation for engineering changes outside the contract, the whole project faces potential losses of 394 million US dollars (about 2.545 billion yuan). On June 13, the owner, Polish expressway Administration, publicly announced the cancellation of the project contracting agreement signed with overseas consortia in China.
The Polish expressway Administration has issued a power of attorney for claim to China overseas and the consortium, and the amount of claim is estimated to be 7465438+ billion zlotys (about 175438+ billion RMB). At the same time, the administration also sent lawyers' letters to China Bank and The Export-Import Bank of China, which issued unconditional demand guarantees in 2009, and received confirmation letters from these two banks. Polish law allows the notified party to give a formal reply within 30 days after receiving the notice. China Railway Co., Ltd. is one of the leading enterprises in infrastructure survey, design and consulting services in China, providing customers with a full range of survey, design, consulting, research and development and supervision services for railways, expressway and highways, bridges and tunnels, and urban rail transit. As of June 5438+February 3, 20061,the total mileage of electrified railways providing survey and design services accounted for more than 50% of the total mileage of electrified railways in China; And provided survey, design and consulting services for more than 58% of the Yangtze River Bridge; The total operating mileage of urban rail transit that has provided survey and design services accounts for more than 365,438+0% of the total operating mileage of urban rail transit in China. China Railway Corporation is a leading enterprise in the railway survey, design and consulting service market, and has played an important role in assisting the Ministry of Railways in formulating railway industry standards in terms of design standards, construction specifications and acceptance standards.
Bird's Nest is a large steel structure. China Railway Corporation has a long history of bridge steel structure production. It is a leading enterprise in China and a leading bridge steel structure manufacturer. The design and manufacturing level of bridge steel structure has reached or approached the international advanced level and is at the leading level in China. The design and manufacture of steel bridge structures have developed from riveted, sheared and bolted steel truss beams and plate beams to bolted connections, integral joints, full-section welded steel truss beams, steel-concrete composite beams and long-span box beams, which have had a far-reaching impact on the development of China's bridge steel structure market. Entrusted by the national competent department, he presided over and participated in the formulation of "Code and Technical Standard for the Production of Railway Steel Bridges" as the general standard of railway steel bridges. China Railway Corporation occupies a dominant position in the manufacturing and sales market of large-scale bridge steel structures in China. In 2004-2006, more than 500,000 tons of bridge steel structures were produced, which were mainly used for large railway steel bridges and highway steel bridges in China. The company's steel structure products are widely used in various fields, which can be divided into the following four categories according to their uses:
① The steel structure of the bridge is beam bridge, steel arch bridge, cable-stayed bridge, suspension bridge, steel truss bridge and steel-concrete composite beam;
(2) Steel structures for theaters, conference centers, railway station waiting rooms and other buildings, steel structures for boiler underframe of power plants, and light steel structures;
(3) Steel structures used for various mechanical products (including girder carriers, cranes and bridge erecting machines);
④ Other steel structures, including light steel plate houses, dismounting bridges, folding containers and international standard containers.
JQ600 bridge erecting machine company has a wide range of turnout products and various models.
For example, various types of single-hole turnouts, manganese steel frog, double-crossing turnouts, rhombic turnouts, speed-up turnouts on existing lines, high-speed turnouts, and various turnouts used in urban rail transit. The track machinery products produced by China Railway Corporation include railway track-laying machinery, rail cars and large-scale road maintenance machinery. China Railway Co., Ltd. is one of the few manufacturers allowed by the Ministry of Railways to engage in the rail machinery industry in China, including rail cars and electrified railway working cars. In the past 50 years, China has designed and manufactured the first rail car, rail flaw detection car, rail grinding car and electrified operation car. A series of rail cars with 160~ 1350 horsepower, multiple transmission forms and multiple purposes, as well as a series of working cars for erecting poles, paying off, installing and testing in electrification construction have been formed. The top speed has been increased from 80km/h to 120 and 160km/h/h, occupying a leading position in the domestic market of bridge-building machinery and railway track-laying machinery, and it is also the first manufacturer in China to develop bridge-building machinery and railway track-laying machinery that can be used in high altitude areas. All three sets of bridge-building machinery and railway track-laying machinery were provided for the Qinghai-Tibet railway construction project. China Railway Co., Ltd. is a leading manufacturer of container cranes in railway stations and yards in China and one of the few manufacturers authorized by the Ministry of Railways to produce railway container cranes. This equipment is mainly used for loading, unloading, moving and stacking containers in railway container yard. In 2006, China Railway Co., Ltd. has manufactured the first special portal crane suitable for railway container yard, and the container portal crane manufactured by China Railway Co., Ltd. can lift up to 40 tons. Main products of track machinery:
Railway track laying machinery: railway track laying machine, railway (highway) bridge erecting machine, bridge erecting machine, box girder bridge erecting machine, etc.
Rail machinery: all kinds of rail cars, rail grinding cars, rail flaw detection cars, electrified work cars, constant tension pay-off cars, aerial work cars, etc.
Lifting machinery: single-beam gantry crane, double-beam gantry crane, detachable gantry crane, bridge crane, rail crane, railway container gantry crane, etc.
The main equipment owned by the hydraulic drilling rig includes: TCM60 long rail single sleeper continuous laying equipment, GAAS80, AMS60, K 1000, K92 1, K92 1 and other rail flash butt welding equipment, and tunnel excavation equipment such as TBM, shield, computer trolley, articulated vehicle, excavator and pipe roof drill. 600t, 900t, 2200t precast concrete box girder bridge erecting machine, girder transport vehicle and other large-tonnage concrete box girder manufacturing and transportation equipment, subgrade compaction equipment such as 20-25t vibratory roller, rotary drilling rig, KPG4000 reverse circulation drilling rig, double-wheel washing, grooved wall machine, large pile driver and other foundation construction equipment, constant tension pay-off vehicle, inspection vehicle and other electrified catenary equipment, and 2500t cygnet. Main equipment display:
1, hydraulic drilling rig. Manufacturer: Axera Tom Locke Company; Model T 1 1S-3 15C.
2. Track-laying machine. Manufacturer: MATISA Swiss; Model: TCM-60.
YL900 tire beam carrier
3. Beam carrier. YL900 tire beam conveyor is one of the super-large complete sets of special equipment developed for the construction of passenger dedicated lines and high-speed railways. It is mainly used to transport large box girder from beam storage yard to bridge construction site, and also can carry bridge erecting machine for long-distance bridge transfer. The beam carrier adopts full hydraulic transmission, closed hydraulic walking system and hydraulic suspension support, so that multiple tire groups can realize uniform stress and adjust adaptively with the change of road surface. Hydraulic all-wheel steering system makes the super-long body have a smaller turning radius; The car body and box girder are supported by three points, which ensures the stability and safety of the vehicle. The model was successfully delivered to China Passenger Dedicated Line in Quanjiao section of Hening Passenger Dedicated Line.
The first hole of the line is a 32m double-line box girder. 4.900-ton bridge erecting machine. JQ900 series walking box girder bridge erecting machine is one of the super-large complete sets of special equipment developed for the construction of passenger dedicated line and high-speed railway, which is mainly used for box girder erection. Bridge erecting machine is a gantry structure with two main beams and three legs. During construction, span a simply supported beam; The beam carrier can leave immediately after entering the beam from the tail; The walking system adopts closed hydraulic transmission and hydraulic suspension support, so that each tire group can bear the load evenly; It is very convenient and flexible for the middle and rear leg tires to walk, the whole machine to move longitudinally and transfer between bridges. Among them, JQ900A bridge erecting machine successfully erected the 32m double-track box girder of the first hole of China Passenger Dedicated Line in Quanjiao section of Hening Passenger Dedicated Line. 1, residence. Since 1990s, China Railway Corporation has actively participated in the real estate development business, and successively entered Beijing, Shenzhen, Shanghai, Guangzhou, Chengdu, Shenyang, Guiyang, Wuhan and other cities, and developed projects such as Xinglong Feng Dan Egret, Dongshan International New City, Qingcheng Holiday, Zhongjing Four Seasons Garden and Freedom City Garden, and is currently developing Nord International Residential Area in Shenzhen. As one of the four main businesses of the company, the real estate industry is developing the real estate market with the unified brand image of "China Railway Real Estate".
Main representatives:
Xinglong Fengdan Egret City Garden. The Third Bridge Gaicha Road is located at the west exit of Guiyang, at the intersection of expressway in Huang Gui and expressway in Guizun, 5 kilometers away from the city center and 7 minutes' drive. The total project area is 222,600 square meters and the total construction area is 38 1 1,000 square meters. The project started in August 2004 and was developed in two stages. It is expected to be completed in 2008. This project can accommodate more than 2,000 households and more than 6,000 people. Community kindergartens, primary schools and community hospitals will be built in the later stage of the project. The design of this project emphasizes the concept of "uniformity, separation of people and vehicles, natural landscape, mountains, belt landscape and neighborhood". In 2006, the property won the title of "Famous Plate in Guiyang, China" and "Ecological Plate in Guizhou, China". 2. Dongshan International New City is located in Longquanyi District, Chengdu, about 40 minutes' drive from Chengdu Central Business District. The total project area is 300,000 square meters, and the estimated total construction area is about 830,000 square meters. The project started in March 2006 and is expected to be completed in 20 1 1 year. Upon completion, the project is expected to include apartment buildings, villas, parks, cultural centers, hotels, international schools and hospitals. In 2006, Dongshan International New Town was awarded the Best International Garden Club in China by the Science and Technology Development Center of the Ministry of Construction and the Organizing Committee of China Real Estate Festival, and the Gold Award for the Best Habitat Planning in Asia by the Organizing Committee of Asia Real Estate Summit.
2. Commercial housing
China Railway Corporation has made great efforts to develop commercial real estate, and successively developed Beijing Asia Resources Building, Shenzhen Nord International Center, China Railway Longcheng and other projects.
Main representatives:
Asia Resources Building is located in Fengtai District, Beijing, in the central area of Beijing CPD (Central Procurement Area), occupying a prime location in the South Square of Beijing West Railway Station. The total area of the project is about 8,200 square meters, and the total construction area is about 42,000 square meters, with *** 15 floors. 5A-class office buildings are equipped with standard hardware facilities, with a green area of nearly 10,000 square meters. It is a landmark building in Beijing, and won the 2004 Great Wall Cup Gold Award for Quality Structure awarded by Beijing Quality Engineering Review Committee.
Shenzhen Nord Center is located at the intersection of Fuzhong Road and Jintian Road in Shenzhen CBD, adjacent to Shenzhen Citizen Center. The total project area is 4,980m2, the building area is 90149m2, the building height is182.8m, and the floor is ***44. It is a super high-rise Grade A office building and one of the landmark buildings in Shenzhen in the new century. The project has successively won the Golden Bull Award, the highest engineering quality award in Shenzhen, and the Goldsmith Award, the highest engineering quality award in Guangdong.