In the realm of geotechnical engineering, a groundbreaking study has emerged that could significantly impact the energy sector and other industries reliant on stable ground conditions. Researchers, led by ZHENG Yingren from The PLA Army Service Academy, have introduced a novel approach to determining the critical sliding surface, a crucial factor in the reinforcement and stability of geotechnical structures. This research, published in *Yantu gongcheng xuebao* (translated to *Rock and Soil Engineering*), challenges conventional methods and offers a more reliable solution for practical applications.
Traditionally, the critical sliding surface—the surface along which a slope or embankment is most likely to fail—has been studied using the upper bound theorem. However, this approach has limitations, particularly in providing conservative estimates that may not always align with real-world conditions. ZHENG Yingren and his team, including ZHANG Jinliang and YIN Dewen from Yellow River Engineering Consulting Co., Ltd., have pioneered a new method based on the lower bound model, which offers a more accurate and reliable assessment.
“The lower bound model provides a more precise understanding of the critical sliding surface, which is essential for the safety and stability of geotechnical structures,” said ZHENG Yingren. “This method ensures that our calculations are not only accurate but also practical for real-world applications.”
The research introduces a new theorem for solving the critical sliding surface based on the lower bound model and provides a corresponding numerical solution method. The team validated the accuracy and reliability of their approach through examples of an upright slope, demonstrating its potential for widespread use in engineering projects.
The implications of this research are far-reaching, particularly for the energy sector. Stable ground conditions are crucial for the construction and maintenance of energy infrastructure, such as pipelines, power plants, and renewable energy installations. By providing a more accurate method for determining the critical sliding surface, this research can enhance the safety and longevity of these structures, reducing the risk of failures and the associated costs.
Moreover, the new method can be applied to various geotechnical engineering projects, including slope stabilization, embankment design, and foundation engineering. Its reliability and feasibility make it a valuable tool for engineers and practitioners in the field.
As the energy sector continues to expand and diversify, the need for robust and reliable geotechnical solutions becomes increasingly important. This research by ZHENG Yingren and his team represents a significant step forward in meeting this need, offering a more accurate and practical approach to ensuring the stability of geotechnical structures.
In the words of ZHANG Jinliang, “This research not only advances our theoretical understanding but also provides practical tools that can be immediately applied in the field. It’s a win-win for both academia and industry.”
With the publication of this study in *Yantu gongcheng xuebao*, the geotechnical engineering community now has a new and powerful tool at its disposal. As the energy sector and other industries continue to evolve, the insights and methods provided by this research will undoubtedly play a crucial role in shaping future developments in the field.