Development Status of Large-Diameter Drilling at Home and Abroad

Abstract: Large-diameter drilling (also known as shaft sinking by drilling method) originated in Western Europe. After technological iterations in various countries, it has been widely applied and relevant equipment developed in the United States, the Soviet Union, Germany and other countries. China conducted trials in 1958 and drilled its first mine shaft in 1969, gradually achieving independent development and expanding its applications to national defense, high-rise buildings, sewage treatment and other fields.

Detailed Introduction to TBM Cutters, RBM Roller Cutters, RCD Roller Cutters & Wear & Heat-Resistant Materials (Customized Version for Overseas Markets)

This paper focuses on customized demands for overseas markets, introducing four core products: TBM Cutters, Raise Boring Machine (RBM) Roller Cutters, Reverse Circulation Drilling (RCD) Roller Cutters, and Wear & Heat-Resistant Materials. It briefly describes their specifications, advantages, application scenarios and quality standards. The products are compatible with mainstream overseas equipment models, covering various industries and geological conditions. Adopting advanced manufacturing processes, all products are certified under ISO9001 and can be supported with relevant international certifications.OEM/ODM customization is available. Supported by an annual production capacity of 30,000 sets of cutters and over 10,000 tons of wear & heat-resistant materials, together with multilingual technical support and full-cycle after-sales service, the products fully meet the supporting requirements of complex overseas engineering projects.

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

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.