Skip to main content

Advertisement

Log in

Damage behaviour of sandstone induced by combination of dry–wet cycles and acidic environment

  • Original Article
  • Published:
Environmental Earth Sciences Aims and scope Submit manuscript

Abstract

Mine-water infiltration and ventilation drying during coal mining have a considerable effect on the stability of the surrounding rock, especially when the mine water is acidic. In this study, a dry–wet cycle test is first conducted to simulate the rock–fluid interaction, and the mechanical properties of sandstone during the acidic dry–wet cycle are studied. Thereafter, a comprehensive method combining nuclear magnetic resonance, X-ray diffraction, and scanning electron microscopy techniques is established for chemical damage analysis, and the damage mechanism of sandstone is summarised. The test results reveal that as the number of cycles increases, the spectral area and porosity always increase, peak strain increases, and peak strength decreases. At higher acidity, the pore-shifting trend is much more noticeable. With the increase in acidity, the minerals in the rock sample react violently with H+, resulting in a steady increase in the number of pores and fissures. The damage in the surrounding rock can be attributed to the accumulation and coupling of multiple physical and chemical water–rock interactions. Porosity is utilised as an index of rock damage. The functional relationship between the number of drying–wetting cycles and the damage magnitude is established by analysing the quantitative relationship between porosity and rock damage. This provides useful insights into subsequent quantitative research on rock damage.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11

Similar content being viewed by others

Data availability

The data used to support the fndings of this study are available from the corresponding author upon request.

References

Download references

Acknowledgements

This work was funded by National Natural Science Foundation of China (11972283), General project of Chongqing Natural Science Foundation (cstc2020jcyj-msxmX1027 and cstc2019jcyj-msxmX0798).

Author information

Authors and Affiliations

Authors

Contributions

YC: Conceptualization, Methodology, Writing, Validation, Formal analysis, Investigation, Visualisation. YS: Methodology, Formal analysis, Conceptualization, Supervision, review and editing, Funding acquisition. HY: Software, Validation, Resources, Supervision. JC: Investigation, Data curation, Writing-original draft. CM: Resources, Supervision, Software, Investigation, Funding acquisition. JZ: Software, Resources, Investigation.

Corresponding author

Correspondence to Yongxin Che.

Ethics declarations

Conflict of interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Che, Y., Song, Y., Yang, H. et al. Damage behaviour of sandstone induced by combination of dry–wet cycles and acidic environment. Environ Earth Sci 82, 19 (2023). https://doi.org/10.1007/s12665-022-10693-2

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s12665-022-10693-2

Keywords

Navigation