True Triaxial Study on Aeolian Sand Subgrade
Abstract
The drained shear tests of aeolian sand in Tengger Desert were carried out by using the British GDS true triaxial apparatus, and the shear strength and stress-strain relationships of aeolian sand were studied under the conditions of constant average principal stress and different intermediate principal stress coefficients. The test results showed that the variation trends of principal strains in the three principal stress directions were correlated with the variation of the intermediate principal stress coefficient, and the stress-strain relationships in the three principal strain directions were hardening type. With the increase of intermediate principal stress coefficients, the shear strength of the specimen decreased, and the peak value of shear strength was the lowest when b = 0.8.
- Publication:
-
Journal of Physics Conference Series
- Pub Date:
- July 2021
- DOI:
- 10.1088/1742-6596/1972/1/012110
- Bibcode:
- 2021JPhCS1972a2110D