2023“Big Country Craftsman of the Year”Release ceremony
March 1，Jointly recorded by the All-China Federation of Trade Unions and China Central Radio and Television Station in 2023“Big Country Craftsman of the Year”The release ceremony was first broadcast on CCTV.，Announce 10 on the spot“Big Country Craftsman of the Year”。
Zhang Shuaikun, Leader of Large Diameter Shield Machine Project of China Railway Construction Heavy Industry, Was Elected in 2023“Big Country Craftsman of the Year”。This is the first big country craftsman of China Railway Construction.“Birth”Moment，He is also the first big craftsman in Changsha, the capital of construction machinery.“Birth”Moment。Zhang Shuaikun's election，Once again inspired and inspired the vast number of workers in Railway Construction Heavy Industry to pursue their dreams.、Confidence and determination of manufacturing power！
“Big Country Craftsman of the Year”Release ceremony
This session“Big Country Craftsman of the Year”The launch was launched in September 2023.，The organizing committee is based on the extensive recommendation of trade unions at all levels.，Announced 50 on January 13 this year“Person of the year”Shortlisted candidates，And hold a red carpet ceremony.、Punch in activity。The expert review committee finally selected 10 candidates from the shortlisted candidates.“Big Country Craftsman of the Year”And 40 nominee。
Zhang Shuaikun was interviewed by CCTV host Wang Ning at the release ceremony.。
“Craftsmen in a big country”Zhang Shuaikun
Zhang Shuaikun，He is currently the project leader of large diameter Shield Machine of China Railway Construction Heavy Industry Group.、Senior engineer。
He and his team aim at the world's scientific and technological frontiers and major national needs.，Creatively solve a number of key scientific and technological problems to fill the gaps in the industry，He presided over the development of more than 100 sets of international advanced large-diameter Shield Machines.，Successfully overcome the extreme conditions of deep earth and deep sea，Helping the Intelligent Construction of National Key Projects，To protect the industrial chain、Supply chain security and stability have made important contributions.。
Zhang Shuaikun is a follower of the shield machine industry.、And run again to the leading witness.、Participant。For being elected“Big Country Craftsman of the Year”,He confessed that he was lucky.，“China Railway Construction Heavy Industry Co., Ltd'Independent innovation',Create innovation‘Talent chain’，It provides a solid innovation soil and a vast platform opportunity for our scientific research and technical personnel.,So that we can concentrate on our studies.、Keep improving，In a series of technological upgrades and engineering breakthroughs，Together with the team'Dig'The scientific and technological highland of domestic shield machine。The honor of big country craftsmen belongs to the whole team.。”
01
Carry forward the spirit of railway soldiers，Solve the technical problems of underground engineering construction
Carry forward digging roads in every mountain、Railway Soldier's Spirit of Building Bridges in Water，Overcome technical difficulties，Remove obstacles to national infrastructure，It is the creed that the spirit of China Railway Construction passed on to Zhang Shuaikun and his team all his life.。Large-scale river-crossing and sea-crossing tunnel is a key control project in the field of infrastructure construction in China.，Large diameter shield machine is to ensure the safety and efficiency of underground space.、Green development is the most important tool of the country.，In the global underground engineering industry chain、Highest point of value chain，It is an important embodiment of the national high-end equipment technology level.。High cost of imported equipment，Technical services are lagging behind，The pertinence design of super-large, super-long and super-deep underground space structure is not strong，It has not fundamentally solved the technical problems under extreme working conditions.，It seriously restricts the high-quality and large-scale construction of major projects in China.。In order to solve the technical problems of large diameter shield tunnel construction from the root as soon as possible,，He and his team spend more than 100 days squatting on many project sites every year.，All day long in a dark, damp tunnel.，Track and analyze the key and difficult points of construction。Every time you have a technical problem，Just squatting all night and eating on the working surface.“Tough bones”，Compare the construction drawings one by one，Record accurate data，Find out the construction obstacles and crux of the problem。
Hangzhou Genshan East Road River-crossing Tunnel and Xiasha Road Upgrading and Reconstruction Project，It is an urgent supporting project to ensure the smooth holding of the 19th Asian Games.，He and his team presided over the development of the 15-meter shield machine.“Qiantang Jixiang”And“Qiantang Endeavour 1”，Ffectively solve that problem that the shield machine with super-large diameter starts from ultra-shallow cover soil、Ultra-small radius turn、Micro-disturbance crossing levee、Difficulties in the industry of long-distance tunneling in clay strata at the bottom of Qiantang River，January 2022，The equipment successfully crossed the Qiantang River.。
15m shield machine“Xingsheng”Applied to the largest diameter tunnel crossing the Xiangjiang River in Hunan Province，Starting from conquering large slope and small curve、Difficult construction problems such as large-diameter, long-distance and high-strength rock stratum tunneling，Successfully pass through ancient buildings、Xiangjiang River levee、Crushing zone、High risk sources such as shallow overburden，March 2023，The equipment successfully opened the river-crossing channel of Xiangya Road。
Zhang Shuaikun and His Team Successfully Adapted to China's National Conditions、Product type spectrum with excellent equipment performance，It lays a solid foundation for the localization of large diameter shield machine.，The self-developed domestic tunnel equipment crosses the Yellow River one after another.。“Super large diameter shield machine”Innovative technology and performance indicators have reached the international leading level.，Selected Product Manual of Scientific and Technological Innovation Achievements of Central Enterprises。
02
Juli Core Components Research，Boosting supply chain safety of tunnel Boring Machine
Firmly grasp the core technology in their own hands，Completely break the foreign monopoly circle，It is the dream pursued by the R & D team of Railway Construction Heavy Industry represented by Zhang Shuaikun.。With the strategy of transportation power、“The Belt and Road”The initiative is advancing in depth and breadth.，Plateau Railway、Urgent, difficult, dangerous and heavy projects such as cross-sea passages have been started one after another.，Accelerate product iteration and upgrade，Ensure the safety of the industrial chain，Break through the core components“Stuck in the neck”Difficult problems have become urgent。Zhang Shuaikun's R & D team of China Railway Construction Heavy Industry started from the source of original innovation.，Will“Stuck in the neck”Become“Assassin's mace”，Do a good job of docking innovation chain and industrial chain，Take two pieces“Good iron”Melt into a furnace“Good steel”，Get through the gap between manufacturing and basic research“The last mile”，Boosting the industrial chain of large-diameter shield machine、The supply chain is autonomous and controllable.。
In view of the 35 items that restrict China's industrial development“Stuck in the neck”One of the key technologies——Main bearing of shield machine，Zhang Shuaikun is one of the participants in the R & D team of the main bearing project.，Under the leadership of Liu Feixiang, chief scientist of Railway Construction Heavy Industry，Participate in the Ministry of Science and Technology《Basic Manufacturing Technology and Key Components》Projects and major science and technology projects in Hunan Province，Overcoming the Independent Design Theory of Large Diameter Main Bearing、Precision manufacturing process、Core and difficult technologies such as working condition simulation test，And that blank of the type spectrum of the large-diameter main bear is filled.，Provide domestic production for the most important equipment of the country“ Heart ”。
August 24, 2023，CCTV 1《Work hard and earnestly·Big province takes on the responsibility bravely》Special program，Heavy Report Railway Construction Heavy Industry Achieves New Breakthrough in Key Technology of Main Bearing of Roadheader，Successfully build domestic super underground engineering equipment“The heart of a king”The story of struggle。
October 12, 2023，The largest diameter in the world independently developed by China、The monomer is the heaviest、Carrying the Highest 8.Main bearing of 61m shield machine，Successfully offline in Changsha Second Industrial Park of Railway Construction Heavy Industry，From then on, the heavy weapons of a big country were available.“Chinese heart”，It breaks the long-term monopoly of foreign countries on the main bearing, the core component of the super-large shield machine.。
03
Develop the first set of major equipment，Helping the Intelligent Construction of National Key Projects
China Railway Construction Heavy Industry insists“Only products that can fill the domestic and even global gaps，Only do customization、Non-standard high-end products，Only in the domestic market share of the top two product positioning.，It is the spirit that Zhang Shuaikun and his team dare to initiate.。The reconstruction project of Beijing East Sixth Ring Road is a key project to promote the coordinated development of Beijing, Tianjin and Hebei.，It was also the largest diameter in China at that time.、The longest shield highway tunnel project，Project integration“Extra large diameter、Very long distance、Ultra-deep covering soil、Hypersensitive environment”And other construction difficulties，Can be called tunnel construction technology“The ceiling”。
June 28, 2023，The first domestic 16m super-large diameter shield machine“Jinghua”Perfect out of the hole，To realize the smooth completion of the West Line Tunnel of Beijing East Sixth Ring Road Reconstruction Project，It marks the completion of the first line of the longest shield expressway tunnel in China.，This national level“Science and technology demonstration project”Significant progress has been made。
Zhang Shuaikun and his team concentrate on breaking through many technical problems such as synchronous double-liquid grouting of super-large diameter shield tunnel to fill the gaps in the industry.，Leading the development of domestic maximum diameter（16m class）Shield machine“Jinghua”，June 2023，The shield tunnel of 7338 meters was successfully completed.，Realization“Zero leakage in the tunnel、Ground micro-disturbance、Zero construction accidents”。“Jinghua”Create a new construction record of 542 meters of tunneling footage in a single month，As a national advanced manufacturing industry, scientific and technological innovation has been deeply integrated.，A typical sample of boosting the technological upgrading of manufacturing industry，May 28, 2021，General Secretary Xi Jinping pointed out at the meeting of academicians of the two academies.“The shield machine with the largest diameter was launched smoothly.”；“Jinghua”And honored to be selected《Questions and Answers on the Study of Xi Jinping's Socialist Thought with Chinese Characteristics in the New Era》And“List of 100 new era witnesses”，And as the sole representative of the industry，Honor to participate in the country“The 13th Five-Year Plan”Science and Technology Innovation Achievement Exhibition and“Strive for a new era”Theme Achievement Exhibition，Accept the review and appreciation of the Party and state leaders，Permanent entry of the model into the exhibition hall of the history of the Communist Party of China。
Zhang Shuaikun and his team aim at high-end、Intelligent、Green direction，Develop high-end intelligent equipment and personalized overall solutions，Realize equipment R & D and geological exploration、Application scenario、Perfect integration of construction methods。It has also successfully developed the deepest submarine tunnel shield machine in China.“Shenjiang No.1”、Shield machine for the world's longest high-speed rail undersea tunnel“Dinghai”And“Yongzhou”The most important weapon of other countries，Keep creating“The best in China”，Vigorously guarantee the construction of large-scale key projects in China。
04
Dare to wrestle with foreign brands，Promoting China's standard construction along the Belt and Road
Railway Construction Heavy Industry insists on leading the global market with the crown quality at the top of the industry pyramid.，With famous foreign brands“Arm wrestling”，It gives Zhang Shuaikun and his team the motivation not to be afraid of challenges.。
Zhang Shuaikun and his team developed the largest diameter shield for export to India“MAVALA”Number，Construction of Mumbai Coastal Highway Tunnel，The shield tunnel passes through basalt、Composite formation composed of breccia and shale，The excavation section is large、Shallow initial burial depth、Close to the coastline、The turning radius is small，The geology is complex and changeable，There are many technical difficulties。He and his team accurately analyzed the personalized customization needs of customers.，A composite cutter head with eight spokes and eight panels was developed.，And against hard basalt.，Equipped with 20-inch large-size hob，The tool apron protection block and the alloy wear-resistant plate are added.，Ffectively improve that rock breaking capacity and the service life of the cut head，For long distance、Provide intelligent support for tunneling in complex strata。
January 10, 2022，The First Section of Mumbai Coastal Highway Tunnel Was Successfully Completed。
May 2023，The equipment successfully passed through the Mumbai Coastal Highway Tunnel Project.，It has created a new construction record of 457 meters per month for overseas large-diameter shield hard rock strata.。The project was selected“2022TOP50 Global Construction Machinery Application Cases”，It marks that China's super-large diameter shield complete technology ranks in the forefront of the world.。
He and his team led the development of a domestic large-diameter shield machine.“International label”，Along“The Belt and Road”Export to Italy、Russia、India、Singapore、Korea、Chile and more than 30 other countries and regions，Contributing Great Power to the World、China's Plan and China's Wisdom。Export from single product research and development，Elevate to technology、Service、Administration、Export of brand and culture，Provide full life cycle services for customers，Help overseas key projects to achieve intelligent construction，It opens the way for China to equip the world with equipment.。China Railway Construction Heavy Industry Co., Ltd. will export 12 large-diameter shield machines to Italy in a single time in 2023，Chinese standards have been implemented.，Polished the name card of China's big shield。
“Underground dragon”Build a thoroughfare for mountains and seas
A great power weighs heavily“When the world is shocked”。
Future，Represented by Zhang Shuaikun
Employees of China Railway Construction Heavy Industry，
Will continue to stick to
“Persistence and concentration、Keep improving、Meticulous、The pursuit of excellence”The spirit of craftsmen
With the attitude of unity, struggle, pioneering and enterprising，
Strive to Realize Railway Construction Heavy Industry Product Industry
Continuous breakthroughs and upgrades，
Contribute to the construction of a strong manufacturing country。
