IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v15y2022i1p552-d1018259.html
   My bibliography  Save this article

Study on the Influence of Water Content on Mechanical Properties and Acoustic Emission Characteristics of Sandstone: Case Study from China Based on a Sandstone from the Nanyang Area

Author

Listed:
  • Xin Huang

    (School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, China)

  • Tong Wang

    (School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, China)

  • Yanbin Luo

    (School of Highway, Chang’an University, Xi’an 710064, China)

  • Jiaqi Guo

    (School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, China
    School of Highway, Chang’an University, Xi’an 710064, China)

Abstract

In order to study the influence of water content on the mechanical properties of sandstone and evolution of crack propagation, laboratory compression tests and Engineering Discrete Element Method (EDEM) numerical simulation of sandstone under different conditions were carried out by the RMT-150B rock mechanics test system. The sandstone samples were from Nanyang, Henan Province, containing a total of 12 rock samples. Under the confining pressure of 0, 5, 10, and 20 MPa, the rock samples with 0%, 1.81%, and 3.24% water content were tested. The findings demonstrated that as the sample’s water content grew, the peak strain increased but the peak strength, elastic modulus, maximum energy rate of individual acoustic emission events, and cumulative acoustic emission energy rate all reduced. While the ratio of tensile cracks to shear cracks inside the rock samples rose with increasing water content, the failure mode of sandstone changes from shear failure to tensile failure with the increase of water content, but the sandstone specimens in the three conditions exhibited shear macroscopic fracture surfaces. Research results will provide reference for the safe construction of underground projects in water rich areas.

Suggested Citation

  • Xin Huang & Tong Wang & Yanbin Luo & Jiaqi Guo, 2022. "Study on the Influence of Water Content on Mechanical Properties and Acoustic Emission Characteristics of Sandstone: Case Study from China Based on a Sandstone from the Nanyang Area," Sustainability, MDPI, vol. 15(1), pages 1-19, December.
  • Handle: RePEc:gam:jsusta:v:15:y:2022:i:1:p:552-:d:1018259
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/15/1/552/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/2071-1050/15/1/552/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:15:y:2022:i:1:p:552-:d:1018259. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.