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ORIGINAL RESEARCH article

Front. Earth Sci.
Sec. Petrology
Volume 12 - 2024 | doi: 10.3389/feart.2024.1484633

Study on Rock Damage Mechanics in Sustainable Development of Red Sandstone Area in China-Taking Zhongjiang County as an Example

Provisionally accepted
Cong Yu Cong Yu 1Wenwu Zhong Wenwu Zhong 2*Xin Zhang Xin Zhang 3Tao Li Tao Li 2Zheng Fei Zheng Fei 3
  • 1 Chengdu Agricultural College, Chengdu, China
  • 2 Chengdu University of Technology, Chengdu, China
  • 3 Xihua University, Chengdu, Sichuan Province, China

The final, formatted version of the article will be published soon.

    There are many hilly areas dominated by red sandstone in western China. At the same time, China is also rapidly advancing the modernization of sustainable development in the above areas. Therefore, in order to ensure the safety and sustainable advancement of modernization, it has become an urgent task for the local government to explore the mechanical properties of red sandstone in relevant areas. Zhongjiang County, Sichuan Province, China is mainly dominated by red sandstone, and the study of red sandstone in this area is very rare. Therefore, this paper takes the red sandstone in Zhongjiang County as the research object, and studies the damage evolution characteristics of red sandstone under uniaxial compression load by acoustic emission monitoring technology. The results show that when the axial stress of red sandstone shows a V-shaped evolution phenomenon and the acoustic emission ringing count enters a relatively quiet period, it indicates that the red sandstone will undergo instability failure. By exploring the evolution law of Ф (AF(ringing count/duration)/RA(rise time/amplitude)), the evolution characteristics of fracture types of red sandstone in the process of damage were found. Based on Weibull function and continuum damage mechanics, the damage evolution model and stress-strain constitutive model are derived. Based on the evolution law of damage variables, the damage evolution characteristics of red sandstone are quantitatively characterized. The above research results make the Zhongjiang county government have a certain reference basis in the preparation of sustainable construction planning.

    Keywords: Red sandstone, Damage mechanics, sustainable development, Construction planning, acoustic emission

    Received: 22 Aug 2024; Accepted: 06 Dec 2024.

    Copyright: © 2024 Yu, Zhong, Zhang, Li and Fei. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Wenwu Zhong, Chengdu University of Technology, Chengdu, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.