Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Geomechanics and Engineering Volume 21, Number 6, June25 2020 , pages 527-536 DOI: https://doi.org/10.12989/gae.2020.21.6.527 |
|
|
|
Undrained solution for cavity expansion in strength degradation and tresca soils |
||
Chao Li, Jin-feng Zou and Yu-ming Sheng
|
||
| Abstract | ||
| An elastic-plastic solution for cavity expansion problem considering strength degradation, undrained condition and initial anisotropic in-situ stress is established based on the Tresca yield criterion and cavity expansion theory. Assumptions of large-strain for plastic region and small-strain for elastic region are adopted, respectively. The initial in-situ stress state of natural soil mass may be anisotropic caused by consolidation history, and the strength degradation of soil mass is caused by structural damage of soil mass in the process of loading analysis (cavity expansion process). Finally, the published solutions are conducted to verify the suitability of this elastic-plastic solution, and the parametric studies are investigated in order to the significance of this study for in-situ soil test. | ||
| Key Words | ||
| Tresca yield criterion; cavity expansion; elastic-plastic solution; strength degradation; undrained condition; initial anisotropic in-situ stress; large-strain | ||
| Address | ||
| Chao Li, Jin-feng Zou and Yu-ming Sheng: School of Civil Engineering, Central South University, Hunan 410075, China | ||