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The Hanging Bell Rock Bridge is the most of the five railways in China
For the first time, the stiff steel skeleton rotating axial structure was used in the construction of railway bridges; The heaviest tonnage and the largest span;
The deepest inclined shaft of railway bridge;
The most welders are invested in the construction of all weldments, and the welding quality is the best;
The construction speed is the fastest.
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The Hanging Bell Rock Bridge is the most of the five railways in China
According to reports, the bridge has set a record of five in the history of China's railway bridge construction with high-tech construction methods: the first time to use a rigid steel skeleton rotating axial structure in the construction of a railway bridge; The 140-meter-long, 3,012-ton rotating main arch of the bridge is the heaviest tonnage and the largest span among the built highway and railway bridges; 4 straight piles and 8 inclined piles excavated by the main span pier foundation, the deepest of which is up to one meter, is the deepest depth of the inclined shaft of the railway bridge at present; More than 30,000 solder joints have been tested without a single bubble and residue, and the most welders have been invested in the construction of all weldments in Ganlong, and the welding quality is the best; In just eight months, more than 510 meters of the Turnaround Bridge was built, which is the fastest construction speed of a bridge of its size.
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The characteristics of China's modern railway construction are mainly as follows: 1. The construction scale is large, and the length of the sail model line has grown rapidly, from dozens of kilometers in 1876 to 100,000 kilometers in 1949; 2. The structure of the line network is complex, mainly based on the trunk line that crosses China, supplemented by branch lines and branch networks; 3. The technical level has been improved in the construction process, from wooden railways to rail railways; 4. A large amount of foreign capital was used in the construction process, and a large number of technologies and equipment were introduced from the United Kingdom, France, Germany, the United States and other countries; 5. In the construction process, a large number of domestic technologies were adopted, such as seismic technology, bridge technology, tunnel technology, etc.; 6. A large number of domestic labor force was used in the construction process, and from design to construction, it was completed by domestic labor force.
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Hello, the main characteristics of China's modern railway construction are as follows:
1. The construction of modern railways in China started later than in the middle and leakage, mainly in the late Qing Dynasty, and then developed rapidly and reached a certain scale.
2. The main driving force for China's modern railway construction is foreign investment, which has played an important role in China's modern railway construction.
3. The main characteristics of China's modern railway construction are that it is mainly based on line construction, supplemented by technological transformation, with technological transformation as the main task, and with the construction of the first road of line dust as the auxiliary task.
4. The main technical characteristics of China's modern railway construction are the adoption of relatively new technology and the application of Western experience and technology to China's railway construction, so that China's railway construction has reached a certain level.
5. The main economic characteristics of China's modern railway construction are that investment is the mainstay, supplemented by income, the purpose of improving the economic structure, and the improvement of transportation conditions as the main task.
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Hello, the main characteristics of China's modern railway construction are as follows:
1.Leading: China's modern railway construction is dominated by the first, and a large amount of money has been invested to promote the development of railway construction.
2.Taking into account both the economy and the military: China's modern railway construction not only considers the economic and economic benefits, but also considers the needs of military blockade and grinding, and combines the economy and the military to promote the development of railway construction.
3.Emphasizing practicality: China's modern railway construction emphasizes practicality, focusing on the construction of railway lines to meet economic development and military needs.
4.Focus on science and technology: China's modern railway construction pays attention to science and technology, adopts advanced technology, and improves the quality and efficiency of railway construction.
5.Strengthen management: Strengthen the management of China's modern railway construction, establish a sound management system, and ensure the quality and safety of railway construction.
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1. The main feature of China's modern railway construction is that it is built by foreign investors and technology, mainly in Britain, France, the United States, Germany and other Western countries.
2. The construction of modern railways in China is mostly based on capitalists and large landlords, and is realized by foreign capital and loans;
3. China's modern railway construction is mostly concentrated in coastal areas, and its route length is short, mainly used for freight and passenger transportation, and improves the internal development of coastal areas;
4. The technical level of China's modern railway construction model is low, the equipment is backward, and the low-level equipment applicable to China's railways can only be selected due to the limitation of Kibi technical models;
5. China's modern railway construction is limited in financial investment and led by foreign capitalists, which makes China's railway construction in a backward state in terms of technology and management, and the operation and management costs are high;
6. Due to the scattered railway resources, the small number of railway lines and the lack of connections, China's modern railway construction has a low degree of formation, limited freight range, small passenger transportation range and low operational efficiency.
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Hello, the main characteristics of China's modern railway construction are as follows: 1. Mainly in coastal areas: Since the late Qing Dynasty, China's railway construction has been mainly in coastal areas, with Shanghai, Qingdao, Guangzhou, Tianjin and other coastal cities as the center, forming a coastal railway network.
2. Coal transportation: Due to China's abundant coal resources, railway construction is mainly based on coal transportation, focusing on coal transportation in coastal rock and dust areas. 3. Mainly state-owned investment
The construction of modern railways in China is mainly invested by the state, and private investment accounts for only a small proportion. 4. Mainly to connect with coastal areas: The construction of modern railways in the middle and rough Chan Kingdom is mainly to connect with coastal areas, and focus on the economic development of coastal areas.
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1. Large scale: The scale of China's modern railway construction is large, from 1876 to 1949, the total mileage of China's railways reached 10,000 kilometers, mainly concentrated in North China, East China, Central China and Southwest China.
2. Close network: The network of China's modern railway construction is close, mainly centered on North China, East China, Central China, Southwest China and Northwest China, forming a close railway network.
3. High technical content: China's modern railway construction has a high technical content, and modern railway technology, such as bridges, tunnels, curves, seismic technology, etc., has reached a high level of collapse technology.
4. Significant economic benefits: The economic benefits of China's modern railway construction are remarkable, which not only changes China's traffic conditions, but also promotes China's economic development, and significantly improves China's economic strength.
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The Chinese manuscript collapsed to call the characteristics of modern railway construction.
Characteristics of China's modern railway construction:
1.Strong geographical limitations: the construction of modern railways should consider the topography and landform, make the technical route of the railway accurate, and also carry out scientific planning in combination with the economic situation at that time, so that the railway line is relatively complete.
2.Focusing on economic construction: Modern railways are mainly comprehensive transportation modes that serve economic development, especially the land transportation arteries that run through various provinces and cities in the interior, as well as the land and sea transportation channels linked to marine transportation, so as to realize a unified freight and passenger transportation system in China.
3.Strong transportation convenience: due to the developed modern railway construction, the modern railway has realized freight and passenger transportation, and the traffic timeliness is more timely and accurate, which has brought great convenience to the market economy and the national economy, and has played an important role in economic development and social progress.
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Hello, the characteristics of China's modern railway construction that you asked are:
The main characteristics of China's modern railway construction are as follows:
1. Large scale: China's modern railway construction is large-scale, starting from 1876, China's railway network has developed at a rate of 100 miles per year, and by 1949, it has reached 10,000 kilometers in Shenshiheng, becoming one of the largest railway networks in the world.
2. High technical level: China's modern railway construction technology level is high, mainly using steam locomotives, the technical level has reached the world's advanced level, and a large number of new technologies have been adopted in the construction process, such as steam locomotives, electrified railways, bridges and tunnels.
3. High quality: The high quality of China's modern railway construction is mainly due to the use of advanced technology, such as the use of steel rails, steel sleepers, steel bridges, etc., as well as the use of a large number of new materials, such as reinforced concrete, steel strands, etc., so that the quality of railway construction has been greatly improved.
Fourth, high economic benefits: China's modern railway construction has high economic benefits, mainly the use of advanced technology, such as the use of steel rails, steel sleepers, steel bridges, etc., as well as the use of a large number of new materials, such as reinforced concrete, steel strands, etc., so that the economic benefits of railway construction have been greatly improved.
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Since the late Qing Dynasty, China's modern railway construction has been in a historical period with "reform and opening up" as the guiding ideology, and many characteristics have emerged over time. First of all, modern China's railway construction attaches great importance to technical content and economic benefits, adopts advanced construction methods and technologies, and uses a large number of local materials and equipment to reduce the cost of railway construction. Secondly, modern China's railway construction pays attention to the national organization, carries out the railway development campaign, establishes a railway planning system with the core of the railway, and organizes orderly construction.
Third, the construction of railways in modern China marks the increasing perfection of the transportation network, the rapid strengthening of the connection between the infiltration areas, and the laying of the foundation for the rational distribution of goods and personnel. At the same time, the construction of modern Chinese railways has also put forward a new concept of "social benefits", emphasizing the development of different levels of public transportation Yuhui services, so that the general public can benefit, and the code is dismantled to serve the society.
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The construction of modern iron fields and bad roads in China mainly has the following characteristics: 1technology is developing on a large scale, gradually shifting from small railways to large-scale railway construction; 2.
In terms of construction management, it has gradually developed from the early semi-official and semi-non-governmental operation to a specialized operation in accordance with the law; 3.The scale of construction is expanding day by day, the rules for online investment are flexible, and the investment and financing channels are diverse; 4.There are various forms of construction, including the construction of national institutions and the cooperative construction of leading enterprises; 5.
There are various modes of hidden management of operations, ranging from fully state-owned to state-owned enterprises to corporatized operations.
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The main characteristics of China's modern railway construction are as follows:
First, the road network covers a wide area. The construction of China's modern railways is aimed at the whole section of the Chiju Kingdom, and in the process of construction, the expansion of the road network has been accelerated, so that the railway network on a national scale has a relatively complete network structure.
Second, the technical level is relatively high. In addition to absorbing foreign technology, China's modern railway construction also applied advanced technologies at that time, such as the use of train self-adjusting gauge (AGC) technology and the use of double-track crossing technology.
Third, the structure is relatively perfect. In the construction of modern railways in China, not only the construction of railways, but also the construction of railway supporting facilities, such as warehouses, stations, guardrails, signals, etc., make the entire railway network more perfect.
Fourth, the operation mode is relatively mature. In China's modern railway construction, the customized operation of trains is adopted, that is, the railway department is responsible for planning, formulating and putting into use trains, so as to better meet the travel needs of the people.
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1. Lack of capital and technical experience: In the early stage of modern China's railway construction, capital investment was limited and the technical level was low, and most of the engineers were foreign commanders.
2. Financing and leasing model: China's railway construction in modern times is facing serious financial constraints, and most of them are based on the British financing and leasing model, and a few are invested by foreign joint-stock companies.
3. Different construction methods: In modern China, the construction methods of railway construction are mixed, with the participation of Chinese yuan in the construction, the foreign-style nuclear service mode imitated by leasing local talents, and the integrated Sino-foreign cooperative construction mode.
4. Different investment methods: In modern China's railway construction, there are foreign capital investment methods, first-class project construction methods, and investment methods with the mixed participation of foreign technicians and local labor.
5. Management norms: In modern China's railway construction, Mengshi prudently uses foreign technical personnel to consult and manage, and implements questions and modifications to foreign technical personnel to ensure the quality of Zhijing project.
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China's modern railway construction is characterized by diversity, comprehensiveness and step-by-step progress. Diversity refers to the investment in the construction of a variety of different types of railway lines and pure roads in different periods, including sea and land shuttles, branch networks, and coastal and extensive railway networks along the river. Comprehensiveness refers to the fact that from the initial passenger transport mainly in the form of freight transport, and later the combination of passenger and freight integration, from a single railway line to a network of multiple railway lines, forming a comprehensive railway transport network with containers, express transport, freight, tourism and other functions.
Step-by-step progress refers to the fact that China's modern railway construction is also in line with the development law of "easy first and then difficult, first small and then large", from low-specification to high-specification leapfrog development, from wide one-way line, double-way line to multi-mile line, network line, and then to the overall architecture system of container transportation.
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1. Transportation convenience and high economic benefits: modern railway construction focuses on the rapid transportation of goods and personnel, which greatly improves the country's economic efficiency.
2. Large lack of mold next to the construction plan: The investment in the construction of modern digital training railways is large, not only to build a large number of railways, equipment and facilities, but also to recruit a large number of workers for construction.
3. It has an important impact on economic development: the construction of modern railways has provided strong support for the country's economic development, made economic development more active, and left a deep mark in the history of national economic development.
4. High comprehensive technical content: Modern railway construction should not only grasp the basic theories of dynamics, mechanics, materials science, etc., but also comprehensively consider the factors of geography, economics, vehicle science, etc., so as to complete the construction process with high comprehensive technical content.
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