Global Shield Tunneling Machine Tool Technology Iteration: Analysis of Wear-Resistant Material Innovation Directions

Abstract:With the steady advancement of global underground infrastructure construction, the wear-resistant material technology of shield tunneling machine tools is accelerating iteration and upgrading. Its performance level directly determines the operational efficiency of shield equipment and the control effect of the whole life cycle cost of projects. Currently, the innovation of wear-resistant materials for shield tunneling machine tools presents three core development directions: composite diversification, intelligent technology integration, and green remanufacturing, which will continue to promote the upgrading and improvement of tool products towards high performance and low carbonization.

2026-03-02

2026 Infrastructure Construction: Surging Demand for Shield Tunneling Equipment, Wear-Resistant Materials Embrace Growth Momentum

The domestic infrastructure sector kicked off 2026 with robust prosperity. Fueled by the dual support of policies and funding, major underground projects have been intensively launched, driving a surge in demand for shield tunneling equipment. This has in turn unleashed definite growth potential for upstream consumable sectors such as wear-resistant materials and seals. With the expansion of application scenarios and breakthroughs in overseas exports, the industrial chain synergy effect has become increasingly prominent, ushering the industry into an era of value revaluation and high-quality development opportunities.

2026-01-30

World's longest expressway tunnel opens to traffic in Xinjiang

China Daily Online：An aerial drone photo taken on Dec 20, 2025 shows a view of Urumqi-Yuli Expressway in Northwest China's Xinjiang Uygur autonomous region.

2026-01-12

The 6th Session, 2nd Meeting of the Board of Directors of the International Association for Large-Diameter Engineering Wells (Piles) was held solemnly.

Abstract: Mr. Chao Huanqing, Vice Chairman and Chairman of Luoyang Jiujiu Technology Co., Ltd., provided several explanations regarding the amendments to the Articles of Association. Based on the feedback received on the amendments to the Articles of Association, the Supervisory Board was elected. Newly appointed Chairman of the Supervisory Board, Mr. Yang Jingrui, delivered a statement outlining the duties, tasks, and scope of authority of the Supervisory Board.

2018-11-24

The 2018 Membership Conference of the Shield Tunnel Remanufacturing Innovation Strategic Alliance was held in Guangzhou.

On November 16, the "2018 Membership Conference of the Shield Tunneling Remanufacturing Innovation Strategic Alliance" was grandly held in Guangzhou.

2018-11-23

China Railway Equipment once again stuns the world.

On December 25, the world's largest rectangular pipe jacking machine with a large cross-section, "Kaotuo," independently developed and manufactured by China Railway Engineering Equipment Group Co., Ltd., rolled off the production line at Dalian Qianyi Manufacturing Base. Luoyang Jiujiu Technology Co., Ltd. also contributed to the project by participating in its technical research and development efforts.

2016-01-06

Qiongzhou Strait Cross-Sea Bridge

The "Qiongzhou Strait Cross-Sea Engineering Planning Study Report," jointly prepared by the Ministry of Transport, the Ministry of Railways, and the provinces of Guangdong and Hainan, has now been completed. The report identifies the construction of a combined road and rail bridge connecting Denglujiao in Xuwens County, Guangdong Province, to Daolunjiao in Chengmai County, Hainan Province, as the preferred solution for the Qiongzhou Strait cross-sea project. The bridge’s offshore section will span 26.3 kilometers—making it the second-longest bridge in the world, behind only the newly completed Hangzhou Bay Bridge.

2015-12-28

China's domestically developed tunnel-boring equipment has achieved a localization rate of 60 percent.

The prototype slurry balance tunneling machine "Jin Yue," developed and built by five organizations including Shanghai Urban Construction Tunneling Co., Ltd., boasts full independent intellectual property rights and a diameter of 11.22 meters. It was successfully deployed in the Dapu Road twin-tunnel project—a key infrastructure supporting the Shanghai World Expo—and completed the 1,472-meter-long tunneling task flawlessly. During construction, the "Jin Yue" slurry balance shield machine operated smoothly, showcasing the exceptional maneuverability and precision of domestically produced shield equipment, especially when it came to protecting nearby structures and navigating ultra-small-radius tunneling sections.

2013-08-26

The Ministry of Railways will receive over 200 billion yuan in financing support, while China South and China North Locomotives have secured tens of billions in outstanding payments.

The Ministry of Railways will soon receive over 200 billion yuan in financing support, which will help with debt repayment, advance key projects, and optimize and refine accompanying initiatives. Thanks to government backing, the railway sector—previously grappling with severe funding challenges—will see a significant easing of its financial strain.

2013-08-26

The seventh tunnel boring machine for Xi'an Metro Line 1 departs from Changlepo.

The No. 12 construction project of Metro Line 1, undertaken by China Railway Eleventh Bureau Group, includes three shield tunnel sections: Changlepao–Wanshou Road Station, Wanshou Road–Tonghuamen Station, and Tonghuamen Station–Kangfu Road Station. This project also features two mined tunnels and one ventilation shaft within the tunnels, with a total length of 3,748.85 double-track meters. Construction officially began on March 18, 2009, and the project is scheduled for completion in early 2012.

2013-08-26