Association factory exploration: The "Shanhe" large shield machine with a diameter of 17.5 meters and a total length of 163 meters, weighing 5200 tons, is used to construct the underground Great Wall

The predecessor of the enterprise was born in the same year as the RepublicThe roar of the machine andJinanThis millennium old cityon the same wavelengthResonance. The rushing of molten iron has forged the backbone of Shandong's industry; The gears rotate and singequipmentThe Song of Time in Manufacturing Industry。This is what has76 years of development historyJinan Heavy Industry Group Co., Ltd——During the cool autumn season, Su Hongxing, Secretary General of Shandong Equipment Manufacturing Industry Association, and his delegation visited the enterprise to exchange and inspect relevant matters.

Under the bustling traffic of Jingshi Road and the shimmering water of Quancheng Parkdepths，JinanThe shield machine manufactured by Heavy Industries iscarefullyWeaving the underground veins of the city. These steel dragons arevariouscomplexThe geological structureProceed cautiously,InIn hard rockBite out the passage, in the cave groupbuildEmbark on a smooth journey and perform an underground symphonic poem about the future of the city. The water of the Yellow River rises from the sky and flows into the sea without returning——JinanMade by Heavy Industriesdiameter17.5 meters, with a total length of 163 metersThe "Shanhe" shield tunneling machine is crossing the embrace of the mother river, writing a modern legend of crossing the Yellow River with a body weight of 5200 tons. As a wholly-owned subsidiary of Jinan Rail Transit Group, Jinan Heavy Industry has transformed from a traditional manufacturer of general mechanical and electrical products to a leader in the field of tunnel construction equipment. Its development process can be regarded as a microcosm of the transformation and upgrading of Shandong's equipment manufacturing industry.

Yu Wenchao, member of the Party Committee and Deputy General Manager of Jinan Heavy Industry Group, introduced that the companyLeading productscoverShield tunneling machine, pipe jacking machine, coal mill, ball millSeries of products, includingThe steel ball coal mill ranks first in the domestic market share and has been awarded the title of China Famous Brand Product；Main BusinessinvolveFour major fields: tunnel construction equipment, power mining equipment, rail transit operation and maintenance, and steel structure construction engineering，enterprisefloor areaWith 410000 square meters, more than 1100 employees and total assets of 5 billion yuan, it is the largest manufacturer of general mechanical and electrical products in Shandong Province. The company has a national recognized enterprise technology center and post-doctoral research station,haveStrong technical strength and innovation ability.

“Mountain River No.”The successful development and operation,It marks that China's shield equipment manufacturing has broken the foreign monopoly and reached the international leading level. It has conquered the key core technology of rapid normal pressure tool changer and intelligent assembly of tube pieces, and constructed the detection of super-large special-shaped components, artificial.-The dual-mode intelligent control system has been successfully applied to the Huanggang Road Tunnel Project in Jinan City to smoothly cross the embankment on the south bank of the Yellow River. Jinan Heavy Industry broke through the most critical main drive research and development of this "heart" technology, so that the shield machine truly has an autonomous beating "Chinese heart".

To date, the company has delivered1More than 40 shield machines are used in the construction of more than ten cities such as Jinan, Fuzhou, Guangzhou and Shenzhen. In the construction of Jinan rail transit line 4, the customized "spring city series" shield machine of Jinan heavy industry has shown excellent performance. Line 4 passes through 26 kinds of complex geology, multiple karst caves and dense urban pipe networks. The construction process can be called a super project in the "Geological Museum. Facing the moderately weathered limestone stratum (hardness equivalent to 3 times the strength of reinforced concrete) between Shanshidong Road Station and Shandalu Road Station along Jingshi Road, Jinan Heavy Industry has customized a "super-strong" shield machine equipped with wear-resistant alloy hob and equipped with real-time monitoring parameters of intelligent shield system. In the "cave maze" between Quancheng Park Station and Qianfoshan Station, the company has built a trinity control system of "advanced detection-precision grouting-intelligent excavation", realizing safe and efficient excavation, showing excellent technical strength and problem-solving ability.

As an enterprise with a high sense of social responsibility, Jinan heavy industry not only provides advanced equipment for infrastructure construction, but also actively fulfills its social responsibility to create employment opportunities. According to the company's high-quality development needs, Jinan Heavy IndustriesThe 2025 recruitment plan totals 59 people, including campus recruitment and social recruitment. Recruitment conditions not only pay attention to professional skills, but also pay more attention to the comprehensive quality of employees. "Excellent ideological and political quality, recognition of the company's corporate culture and development strategy, good conduct, honesty, unity of colleagues, diligence and dedication"ofThe concept of talents has laid a solid foundation for the sustainable development of enterprises.

Looking to the future, Jinan Heavy Industry is actively engaged in rail transit operation and maintenance, and is committed to providing comprehensive and multi-level maintenance and guarantee services for urban subway, light rail and other rail transit systems；Accelerate the research and development and industrialization of super-large shields and smart shields, expand new scenarios for shield applications, promote the research and development and upgrading of large-scale, intelligent and green mills, and build flexible manufacturing bases for rail transit equipment and heavy equipment.。

We believe thatthe new generation of information technology is deeply integrated with the manufacturing industry,Jinan Heavy Industry, which is oriented by scientific and technological innovation, will beBoosting the Leap of Traditional Productivity to New Quality Productivityinject new vitality，LiftingChina's urban rail transit engineering equipment and safety construction core competitiveness，With technological innovation and responsibility, writing the new era of underground infrastructureJinan answer。

text Guo Guangli/Figure: Su Hongxing, Corporate Website