Skip to main content

ORIGINAL RESEARCH article

Front. Earth Sci.
Sec. Geohazards and Georisks
Volume 12 - 2024 | doi: 10.3389/feart.2024.1459447
This article is part of the Research Topic Physical Properties and Mechanical Theory of Rock Materials with Defects View all 4 articles

Influence of the Different Stress Paths on Rock Deformation Memory Effects using the Deformation Rate Analysis Method

Provisionally accepted
Lingwei Zhong Lingwei Zhong 1Xuhua Ren Xuhua Ren 1*Haijun Wang Haijun Wang 2*Guangchuan Zhao Guangchuan Zhao 3*Yang Li Yang Li 3*Jiawei Zhu Jiawei Zhu 4*
  • 1 College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, Liaoning Province, China
  • 2 Nanjing Hydraulic Research Institute, Nanjing, Jiangsu Province, China
  • 3 Operation and Maintenance Center of Shandong Water Diversion Project, Jinan, China
  • 4 Zhongnan Engineering Corporation Limited, Changsha, China

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

    Deformation memory effect (DME) is a common property of the rock. A method called Deformation Rate Analysis (DRA) which is based on DME provides a brand-new approach to measuring in-situ stress. When rock DME is applied in engineering, it is necessary to solve the problem that which stress peak is corresponding to insitu stress. The standard square samples made of sandstone and granite were selected to investigate the rock DME under different stress paths. Then a memory theoretical model based on multi-surface sliding friction hysteresis is used to analyze the mechanisms of rock DME. The results show that: (1) Rocks always remember the maximum peak stress from preloading, regardless of the sequence of multiple preloading; (2) Multi-memory exists in tests because we found another inflection in DRA curve; (3) The memory model based on sliding friction hysteresis shows the precision of memory information formation increases as the historical maximum peak value gets closer to the measurement load, but multi-memory does not exist in theoretical analysis. The conclusion provides the rule of rock DME under different stress path which would benefits in in-situ stress reconstruction.

    Keywords: Deformation memory effect, Deformation rate analysis, different stress path, multi-memory, Friction sliding

    Received: 04 Jul 2024; Accepted: 03 Sep 2024.

    Copyright: © 2024 Zhong, Ren, Wang, Zhao, Li and Zhu. 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:
    Xuhua Ren, College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, Liaoning Province, China
    Haijun Wang, Nanjing Hydraulic Research Institute, Nanjing, Jiangsu Province, China
    Guangchuan Zhao, Operation and Maintenance Center of Shandong Water Diversion Project, Jinan, China
    Yang Li, Operation and Maintenance Center of Shandong Water Diversion Project, Jinan, China
    Jiawei Zhu, Zhongnan Engineering Corporation Limited, Changsha, 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.