Skip to main content
Log in

Shear creep behavior of red sandstone after freeze-thaw cycles considering different temperature ranges

  • Original Paper
  • Published:
Bulletin of Engineering Geology and the Environment Aims and scope Submit manuscript

Abstract

A strong freeze-thaw (F-T) weathering effect influences the strength of rock in the high-altitude areas of the Qinghai-Tibet Plateau. To study the long-term deterioration characteristics of rock in an alpine F-T environment, shear creep experiments were conducted on red sandstone from the Sichuan-Tibet highway to analyze its shear creep characteristics under different temperature ranges. The results show that the rock’s stress level gradually decreases with increasing temperature under the same number of F-T cycles, while the creep displacement gradually increases. The long-term strength and long-term reduction factor present apparent decreasing trends with an increase in the F-T temperature range. The failure morphology evolves from shear failure with a single horizontal plane to that with multiple dipping shear planes. The greater the temperature range is, the greater the number of shear secondary cracks that intersect, resulting in more complicated failure morphologies. Then, a Burgers model considering F-T and time-dependent damage was established. The parameters of this model were identified via the experimental creep data of the red sandstone. The accuracy and applicability of the model were verified by comparing the experimental and model-predicted results. These results are significant for the construction of major engineering projects in the alpine region.

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
Fig. 12

Similar content being viewed by others

References

Download references

Funding

This research was supported by the National Key R&D Program of China (Grant No. 2017YFC1501301), the National Natural Science Foundation of China (Grant Nos. 41521002 and 41972284), and the research fund of the State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Grant No. SKLGP2019Z016).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Guoqing Chen.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Wang, D., Chen, G., Jian, D. et al. Shear creep behavior of red sandstone after freeze-thaw cycles considering different temperature ranges. Bull Eng Geol Environ 80, 2349–2366 (2021). https://doi.org/10.1007/s10064-020-02046-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10064-020-02046-9

Keywords

Navigation