Be a pioneer in modern railway construction

Release date 2025-01-16 15:14:05 Reading 1

　　used excavator for saleBe a pioneer in modern railway constructionused excavator for sale used excavator for saleused excavator for sale

　　Railway is an important infrastructure of the country and a major artery of the national economy, playing a key role in the construction of the national comprehensive transportation system. China Railway Engineering Group Co., Ltd. (hereinafter referred to as "China Railway") firmly grasps the theme of high-quality development, closely revolves around major national strategies, bravely takes the lead in modern railway construction, used excavator for saleand strives to achieve greater development and play a greater role in the process of comprehensively building a socialist modernized country and realizing the second centenary goal.

　　Railway construction plays an important supporting role in economic and social development

　　A strong transportation country should prioritize railways. China has a vast territory, deep inland areas, a large population, and uneven distribution of resources and industrial layout. As a major artery of the national economy, railways are an important infrastructure guarantee for optimizing resource allocation, smoothing the national market, and driving regional development. They play an important role in promoting social development and serving economic construction.

　　Railway construction provides strong support for building a modern infrastructure system. General Secretary Xi Jinping emphasized that "infrastructure is an important support for economic and social development. We must coordinate development and security, optimize the layout, structure, function, and development mode of infrastructure, build a modern infrastructure system, and lay a solid foundation for the comprehensive construction of a socialist modernized country. Railways are an important component of building a modern infrastructure system, serving as the backbone of the country's comprehensive three-dimensional transportation network and playing a significant role in facilitating market access. The smooth operation of the railway network can expand the market, promote regional industrial division of labor and cooperation, and optimize resource allocation, which is conducive to promoting the construction of a unified national market. If railway trunk lines are the main arteries, then urban transportation is the capillaries, and railway comprehensive transportation hubs are their connecting points. The construction concept of station city integration enables the perfect integration of railways and urban transportation. Xiong'an Station is a model in this regard, connecting multiple high-speed railways to the outside world, linking the Beijing Tianjin Hebei region, and connecting the whole country, using high-speed rail hubs to drive urban development; Internally, a three-dimensional transportation organization method is adopted to effectively integrate the urban space of the station with the hub, urban rail transit, and underground space.

　　used excavator for saleRailway construction provides strong support for implementing regional coordinated development strategies. On November 12, 2020, General Secretary Xi Jinping visited Nantong for inspection and talked about the Shanghai Suzhou Nantong Yangtze River Highway and Railway Bridge. He said, "Back then, when you faced Shanghai across the river, Nantong was not easy to 'connect'. Now that the cross river bridge has been built, it will fly north and south, and the natural barrier will become accessible. From then on, 'Nantong will be easy to connect'." General Secretary Xi Jinping vividly explained the important role of infrastructure 'connectivity' in regional coordinated development. On July 1, 2020, the Shanghai Suzhou Nantong Yangtze River Highway and Railway Bridge was opened, effectively promoting the integrated development of the Yangtze River Delta. The significant differences in natural resource endowments among different regions in China are rare in the world, and coordinating regional development has always been a major issue. Railway construction can not only open up joints and clear bottlenecks for the implementation of major regional strategies such as the coordinated development of Beijing Tianjin Hebei, the construction of the Guangdong Hong Kong Macao Greater Bay Area, and the integrated development of the Yangtze River Delta, but also strengthen the radiation and driving role of central cities in surrounding areas; It can better form a transportation corridor that spans across the country, better leverage the comparative advantages of various regions in the east, west, north, south, and central regions, promote the rational flow and efficient aggregation of energy, food, products, human resources, etc., and provide strong support for enhancing regional balance.

　　The picture shows the world's first dual-purpose cable-stayed bridge with a span exceeding one kilometer, the Shanghai Suzhou Nantong Yangtze River Highway and Railway Bridge, which opened on July 1, 2020

　　Railway construction provides strong support for promoting common prosperity for all people. On February 12, 2018, General Secretary Xi Jinping praised the young party members of China Railway Tunnel Group who participated in the expansion and renovation project of the Chengdu Kunming Railway in his speech at the symposium on precision poverty alleviation: "They took over the banner of their predecessors, undertook the construction of the longest and most difficult Xiaoxiangling Tunnel on the new Chengdu Kunming Railway, and were determined to inherit the spirit of the old Chengdu Kunming Railway, never forget their original intention, forge ahead, and make the railway an accelerator for people along the line to get rid of poverty and become prosperous as soon as possible." After more than six years of construction, the Xiaoxiangling Tunnel located in Daliangshan was completed on June 21 this year; After the opening of the Xinchengkun Railway, it will greatly facilitate the travel of the people along the Liangshan Mountains, which is conducive to consolidating and expanding the achievements of poverty alleviation and comprehensively promoting rural revitalization. To become rich, first build roads. Transportation infrastructure is an important support for promoting common prosperity for all people. The construction of the three railway sections in Xinjiang, namely the He Ruo, Southern Xinjiang, and Geku, has created a 2712 kilometer long circle around the Taklamakan Desert, greatly facilitating the travel and transportation of goods for people of all ethnic groups along the route; The Lalin Railway built in Xizang is the first electrified railway in Xizang, ending the history of no railway in southeast Tibet, and becoming a unity line and a happy road.used excavator for sale used excavator for saleused excavator for sale

　　used excavator for saleThe railway construction provides strong support for promoting the high-quality development of the joint construction of the "the Belt and Road". On December 3, 2021, General Secretary Xi Jinping attended the opening ceremony of the China Laos Railway via video conference and pointed out that the railway is a landmark project of high-quality joint construction of the Belt and Road Initiative. The China Laos Railway starts from Kunming, China in the north and ends in Vientiane, Laos in the south. It spans three mountains and four rivers, with a total length of 1035 kilometers. It is the first international railway that adopts Chinese technical standards, uses Chinese equipment, and is directly connected to the Chinese railway network, bringing great opportunities to the economic development of Laos. In addition to the China Laos Railway, China Railway has also deeply participated in the construction of the "the Belt and Road" key projects, such as the Addis Ababa Djibouti Railway, the Indonesia Yawan High speed Railway, the Hungary Serbia Railway, the Bangladesh Padma Bridge and its railway link, and the Uzbekistan "Angren Pap" railway Kamchik Tunnel, which has interpreted the profound connotation of building a community with a shared future for mankind with practical actions. Even mountains and seas cannot distance people with common aspirations. In recent years, with the goal of high standards, sustainability and benefiting people's livelihood, China has continuously improved the level of joint construction of the "the Belt and Road", achieved mutual benefit and win-win results for countries and regions along the route, and opened up new space for world economic development.used excavator for sale used excavator for saleused excavator for sale

　　China's railway construction has achieved historic success

　　Since the 18th National Congress of the Communist Party of China, China Railway Construction Corporation and other railway construction enterprises have deeply implemented the important instructions and directives of General Secretary Xi Jinping, promoting China's railway construction capacity, technological level, and equipment manufacturing to achieve world leadership.

　　The scale and capacity of railway construction have been significantly improved. The construction of railways in the new era has made rapid progress in both scale and capacity, achieving significant breakthroughs.used excavator for sale used excavator for saleused excavator for sale

　　used excavator for saleIn terms of construction scale, in the past 10 years, the national railway has added 52000 kilometers, accounting for more than one-third of the total railway operating mileage in the country. At present, railways have covered 81% of counties in China, forming a railway network with reasonable layout, wide coverage, clear hierarchy, safety and efficiency. Among them, a large number of high-speed railways have been built and opened, with an average annual production of 3500 kilometers. The high-speed railway network has expanded from "four verticals and four horizontals" to "eight verticals and eight horizontals", increasing from over 9000 kilometers in 2012 to more than 40000 kilometers currently. High speed railways reach 93% of cities with a population of over 500000. China has become the country with the longest operating mileage, largest scale under construction, and highest commercial operation speed of high-speed rail in the world.

　　From the perspective of climate adaptability, we have the construction ability to cope with various complex climate environments. We have built railways in extremely cold regions such as Harbin, Harbin, and Mudanjiang, ensuring that they can overcome climate challenges such as frost heave and snow damage and maintain high-speed operation even in extremely cold weather conditions of -40 ℃. The completed high-speed railway around Hainan Island, located in the tropical region, can cope with the impact of high temperature, humidity, typhoon, lightning, rainstorm and other adverse weather. The Pingtan Strait Public Railway Bridge, which has been completed, is China's first dual-use cross sea bridge for both public and railway transportation. It is located in a "world-class wind outlet" with winds of 6 or above for over 300 days per year; China Railway Construction Company has reduced the wind force on the bridge deck to level 3 by installing wind barriers and other measures, helping China's high-speed railway move towards the ocean.

　　From the perspective of geological adaptability, we have the ability to construct railways under different complex geological conditions. China's railway construction spans three levels, facing the world's most diverse terrain, landforms, and natural environment. The Da Bao section of the Da Rui Railway, which opened on July 22, 2022, has a tunnel known as the "most difficult tunnel to excavate in history", which is the Da Zhushan Tunnel located in the southern section of Hengduan Mountain. The tunnel passes through 6 fault zones, 3 fold structures, 5 karst development and radioactive areas, low and high temperature zones, etc. China Railway Group has overcome various complex geological problems such as frozen soil, soft soil, karst, landslides, mudslides, earthquake fault zones, and loess subsidence areas during construction.

　　The level of railway construction technology has entered the world's advanced ranks. On May 10, 2014, General Secretary Xi Jinping emphasized during his inspection of China Railway Engineering Equipment Group Co., Ltd. the need to "promote the transformation from Made in China to Created in China, from Chinese speed to Chinese quality, and from Chinese products to Chinese brands". China Railway Group earnestly implements the important instructions of the "Three Transformations", vigorously implements the innovation driven development strategy, continuously enhances the independent innovation capability of railway construction, and forms a world advanced railway construction technology with independent intellectual property rights.used excavator for sale used excavator for saleused excavator for sale

　　In the construction of high-speed railways, achieve a leap from catching up to leading. The system has mastered the complete set of technologies for high-speed railway construction, especially in carrying out research and development on intelligent railway construction technology. It has designed and built the world's first intelligent high-speed railway, the Beijing Zhangjiakou high-speed railway, showcasing China's high-speed railway construction level to the world. Continuing to make breakthroughs in the construction of the Beijing Xiongnu intercity railway, the first three-dimensional digital intelligent management of railway design, construction, and operation has been achieved, setting a new benchmark for the world's intelligent high-speed railway construction.

　　In the construction of heavy-duty railways, we have mastered the key technologies for building new 30 ton axle load heavy-duty railways, overcome a series of major scientific and technological challenges such as heavy-duty roadbeds, bridge reinforcement, marshalling yard capacity expansion, cross river and lake crossings, and long tunnel excavation. We have built multiple heavy-duty railways such as the Haoji Railway and the Waki Railway, filling multiple gaps in the world's heavy-duty railway construction technology and constructing a new energy transportation corridor in China.

　　In the construction of railway bridges and tunnels, constantly breaking the world records of "tallest, longest, largest, and most difficult". The high bridge tunnel ratio has become very common in railway construction in China. For example, 91 new bridges and 57 tunnels will be built along the Xiangwan section of the Zhengzhou Chongqing high-speed railway, with a bridge tunnel ratio exceeding 98%. China Railway Group Corporation (CRCC) adheres to the principle of original innovation and has overcome numerous global challenges in railway bridge and tunnel construction. The Lianzhen High speed Railway Wufengshan Yangtze River Bridge has achieved for the first time a railway bridge crossing the Yangtze River, and is also the world's fastest and heaviest running railway bridge. The the Pearl River Mouth Tunnel of Shenjiang Railway has a maximum underwater burial depth of 115 meters, which is the deepest underwater tunnel in China. A large number of railway bridges and tunnel projects have won the industry's highest awards issued by the International Bridge Conference and the International Association of Tunnels and Underground Spaces.

　　The picture shows the opening of the He Ruo Railway on June 16, 2022

　　used excavator for saleRailway construction plays a significant role in driving the development of related industries. In the past 10 years, China's railway fixed assets investment has accumulated more than 7 trillion yuan, which has played a huge role in driving the development of related industries.

　　Drive the optimization and upgrading of building materials. Railway construction not only drives the demand for basic building materials such as steel and cement, but also promotes the optimization and upgrading of the product structure of basic building materials. China Railway Group has conducted pure purification research on high manganese steel and developed and manufactured high manganese steel containing nano atomic groups in the development of railway turnouts, significantly improving the performance of manganese steel; For the first time, non coated weather resistant steel was used in the Lalin Railway Zangmu Extra Large Bridge, and the large-scale application of plain concrete at Xiong'an Station provided a broad platform for the development of these new products.

　　Drive construction equipment towards high-end. The modernization of construction equipment has become one of the important symbols of modernization in railway construction. We have overcome core technologies such as shield machine main bearings and control systems, and independently developed various models of high-end equipment such as shield machines, bridge erecting machines, large tonnage crane ships, and intelligent welding robots. The "Caiyun" shield tunneling machine, which is currently being excavated in the Gaoligongshan Tunnel of the Darui Railway, has been selected as one of the "Top Ten Key Equipment of Central Enterprises"; The Hangzhou Ningbo high-speed railway uses the world's largest tonnage prefabricated box girder bridge crane "Yuehai"; There are also the world's first pile beam integrated intelligent bridge building machine "Gonggong", the first domestic building component assembly robot "Chisha", and the first domestically produced high-altitude and high-altitude large-diameter hard rock excavation machine "Xueyu Pioneer"... China's equipment manufacturing is moving towards the mid to high end of the industrial chain value chain.

　　Drive the vigorous development of green technology. We adhere to the guidance of "ecological priority and green development" in railway construction, formulate green construction standards and evaluation criteria for railway engineering, integrate green and low-carbon ecological concepts into the entire process of engineering planning, design and construction, and vigorously promote green construction technology and energy-saving and low-carbon technology. For example, in the construction of railway station buildings, a large number of technologies such as photovoltaics and ground source heat pumps are used. The roof of Beijing Fengtai Station, the largest railway station in Asia, adopts photovoltaic power generation system, natural lighting system, and natural ventilation system, which can save more than 900000 kWh of electricity and reduce carbon emissions by more than 900 tons per year.

　　Strive to build a modern railway network

　　We need to summarize our experience, continue to work hard, and strive for greater development during the 14th Five Year Plan period. China Railway Group will deeply implement the innovation driven development strategy, focusing on the development direction of integrated, green, and intelligent railway construction, and contribute to the construction of China's first modern railway network.used excavator for sale used excavator for saleused excavator for sale

　　High quality construction of integrated comprehensive railway network. According to the "Outline of the Railway Pilot Plan for a New Era Transportation Power", China will take the lead in building a modern railway network by 2035. It mainly includes the "three networks and one hub", namely the modern and efficient high-speed railway network, the widely covered conventional railway network, the fast and integrated intercity and urban railway network, and the urban comprehensive passenger transport hub centered on railway stations. China Railway Group will closely focus on the needs of modern railway network construction, strengthen the research and development of cutting-edge leading technologies, and strive to create an original technology source and industrial chain "chain leader". Actively promote the construction of high-quality railway networks, and help build four international comprehensive transportation hub clusters in the Beijing Tianjin Hebei, Yangtze River Delta, Guangdong Hong Kong Macao Greater Bay Area, and Chengdu Chongqing dual city economic circle; used excavator for saleActively breaking through the traffic congestion points of regional coordinated development, and promoting the integrated development of central cities and urban agglomerations through the integrated railway network of metropolitan areas; Actively promote the smooth connection of urban and rural railways, assist in rural revitalization, and solve the problem of the "last mile" of people's travel.

　　Promote the green development of railway construction with high quality. General Secretary Xi Jinping emphasized the need to accelerate the formation of green and low-carbon transportation modes, strengthen the construction of green infrastructure, promote new energy, intelligent, digital, and lightweight transportation equipment, encourage and guide green travel, and make transportation more environmentally friendly and low-carbon. China Railway Group will promote the green development of railway construction by conserving energy and resources, protecting the ecological environment, and promoting green construction technologies. In the survey and design stage, further strengthen the selection of ecological and environmental protection design routes and sites, and implement ecological protection and soil and water conservation measures in accordance with the law; In construction, we will improve the comprehensive utilization efficiency of energy and the utilization rate of clean energy and renewable energy, promote the recycling and reuse of construction materials, waste materials, etc., and promote the resource utilization of construction waste, sludge, sewage, etc; After the construction is completed, strict implementation of ecological environment restoration, geological environment governance restoration, and land reclamation will be carried out, promoting ecological greening along the railway line and constructing green railway corridors. At the same time, we will accelerate the research and application of green construction technology, actively carry out technological breakthroughs in low-carbon, zero carbon, and negative carbon new materials, new technologies, and new equipment, and create more green and sustainable railway projects.used excavator for sale used excavator for saleused excavator for sale

　　used excavator for salePromote the intelligent upgrading of railway construction technology with high quality. Intelligent construction technology has been widely applied in the construction of high-speed railways in China. China Railway Group will vigorously implement the "Digital Intelligence Upgrade Project" for railway construction technologyused excavator for sale used excavator for saleused excavator for saleused excavator for saleused excavator for saleused excavator for sale