On December 1, 2025, the "Technical Regulations for Settlement Deformation Observation and Evaluation of Railway Engineering" (Q/CR 9230—2025), an enterprise standard of China Railway Group Limited, which was jointly prepared by Sichuan Southwest Jiaotong University Railway Development Co., Ltd., was approved for release and implementation.

This regulation applies to the observation and evaluation of settlement deformation in new and renovated railway projects. It aims to unify the technical requirements for settlement deformation observation and evaluation during railway construction, ensuring safety, reliability, technological advancement, and economic applicability. It provides an important basis for reasonably determining the construction timing of track works and ensuring the quality and operational safety of railway projects.
 The company's participation in the compilation of this national railway group standard is a recognition of its innovation and technology research and development capabilities within the industry. It demonstrates the company's technical advantages in the field of settlement deformation observation and evaluation, which helps to consolidate its industry position, enhance its core competitiveness and influence, and has a positive impact on the company's long-term development.