Recent research conducted by LIU Xinyu and his team at the Key Laboratory of In-Situ Property Improving Mining of the Ministry of Education, Taiyuan University of Technology, has unveiled significant insights into the mechanics and permeability of bedded sandy mudstone under fluid-solid coupling conditions. This study, published in ‘Taiyuan Ligong Daxue xuebao’ (Journal of Taiyuan University of Technology), is poised to influence the construction sector, particularly in underground engineering and resource extraction.
The research utilized a combination of discrete element simulation and stress-seepage coupling laboratory tests to explore how the permeability of sandy mudstone changes under stress. “Understanding the mechanical characteristics and permeability of bedded sandy mudstone is crucial for effective management in construction projects, especially those involving tunneling and mining,” said LIU. The study highlights the anisotropic nature of the rock, revealing that both strength and permeability are significantly affected by the rock’s bedding angles.
One of the key findings of the research is the relationship between the bedding angle and the material’s mechanical properties. As the bedding angle increases, the peak intensity of the rock exhibits a “U” shaped curve, while the maximum permeability decreases linearly. This information is vital for engineers and construction managers who must consider these factors when designing structures that interact with geological formations. The ability to predict how rock will behave under various conditions allows for more informed decision-making, ultimately reducing risks and costs associated with construction projects.
Moreover, the study introduces a novel approach to characterizing the flow field within the rock, utilizing finite difference methods to simulate and visualize the stress-strain response and permeability changes. “Our method not only reflects the physical behavior of the materials but also provides a framework for understanding fluid flow in geological settings,” LIU elaborated. This innovative technique could lead to advancements in how construction professionals assess and mitigate seepage issues in rock formations.
The implications of this research extend beyond theoretical knowledge; they present tangible benefits for the construction industry. By enhancing the understanding of how bedded sandy mudstone behaves under stress, this study equips engineers with the tools needed to improve the safety and efficiency of construction operations. As urban areas continue to expand and the demand for underground resources grows, these insights will be increasingly relevant.
For those interested in the technical details and methodologies of this research, further information can be found in the publication from Taiyuan University of Technology. The work of LIU and his colleagues not only contributes to the academic field but also sets a precedent for future innovations in construction practices. More details can be accessed through their institutional page at Key Laboratory of In-Situ Property Improving Mining.
