Shear Strength Behaviors of Aeolian Sand Solidified by Microbially Induced Calcite Precipitation and Basalt Fiber Reinforcement
Abstract
:1. Introduction
2. Materials and Methods
2.1. Test Materials
2.2. Sample Preparation
2.3. Test Methodology
3. Results and Discussion
3.1. Stress–Strain Characteristic Analysis of Aeolian Sand
3.2. Peak Strength Analysis of Aeolian Sand
3.3. Brittleness Index Analysis of Aeolian Sand
3.4. Shear Strength Index Analysis of Aeolian Sand
3.5. Shear Strength Modeling of Aeolian Sand
- (a)
- Modeling
- (b)
- Parameter acquisition
- (c)
- Model verification
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Gs | ρdmax (g/cm3) | ρdmin (g/cm3) | d10 (mm) | d30 (mm) | d60 (mm) | Cu | Cc |
---|---|---|---|---|---|---|---|
2.65 | 1.85 | 1.47 | 0.073 | 0.109 | 0.187 | 2.58 | 0.88 |
σ3 (kPa) | ρd (g/cm3) | Cementation Number | Fiber Length (mm) | Fiber Content (%) |
---|---|---|---|---|
25, 50, 100 | 1.6 | 12 | 0 | 0.0 |
6 | 0.2, 0.4, 0.6, 0.8, 1.0 | |||
9 | 0.2, 0.4, 0.6, 0.8, 1.0 | |||
12 | 0.2, 0.4, 0.6, 0.8, 1.0 |
ρd (g/cm3) | FL (mm) | FC (%) | σ3 (kPa) | qpeak (kPa) | ρd (g/cm3) | FL (mm) | FC (%) | σ3 (kPa) | qpeak (kPa) |
---|---|---|---|---|---|---|---|---|---|
1.6 | 0 | 0 | 25 | 244.88 | 1.6 | 9 | 0.4 | 50 | 632.78 |
1.6 | 0 | 0 | 50 | 378.42 | 1.6 | 9 | 0.6 | 50 | 771.66 |
1.6 | 0 | 0 | 100 | 544.47 | 1.6 | 9 | 0.8 | 50 | 801.90 |
1.6 | 6 | 0.2 | 25 | 352.88 | 1.6 | 9 | 1 | 50 | 955.50 |
1.6 | 6 | 0.4 | 25 | 407.66 | 1.6 | 9 | 0.2 | 100 | 717.99 |
1.6 | 6 | 0.6 | 25 | 439.31 | 1.6 | 9 | 0.4 | 100 | 966.64 |
1.6 | 6 | 0.8 | 25 | 537.99 | 1.6 | 9 | 0.6 | 100 | 1143.91 |
1.6 | 6 | 1 | 25 | 768.08 | 1.6 | 9 | 0.8 | 100 | 1245.31 |
1.6 | 6 | 0.2 | 50 | 397.13 | 1.6 | 9 | 1 | 100 | 1371.56 |
1.6 | 6 | 0.4 | 50 | 559.23 | 1.6 | 12 | 0.2 | 25 | 479.07 |
1.6 | 6 | 0.6 | 50 | 617.57 | 1.6 | 12 | 0.4 | 25 | 514.14 |
1.6 | 6 | 0.8 | 50 | 778.40 | 1.6 | 12 | 0.6 | 25 | 621.37 |
1.6 | 6 | 1 | 50 | 948.27 | 1.6 | 12 | 0.8 | 25 | 719.14 |
1.6 | 6 | 0.2 | 100 | 653.56 | 1.6 | 12 | 1 | 25 | 815.87 |
1.6 | 6 | 0.4 | 100 | 716.04 | 1.6 | 12 | 0.2 | 50 | 717.95 |
1.6 | 6 | 0.6 | 100 | 839.50 | 1.6 | 12 | 0.4 | 50 | 737.18 |
1.6 | 6 | 0.8 | 100 | 923.63 | 1.6 | 12 | 0.6 | 50 | 810.20 |
1.6 | 6 | 1 | 100 | 1162.48 | 1.6 | 12 | 0.8 | 50 | 805.25 |
1.6 | 9 | 0.2 | 25 | 443.51 | 1.6 | 12 | 1 | 50 | 1109.99 |
1.6 | 9 | 0.4 | 25 | 498.83 | 1.6 | 12 | 0.2 | 100 | 997.53 |
1.6 | 9 | 0.6 | 25 | 570.62 | 1.6 | 12 | 0.4 | 100 | 1004.83 |
1.6 | 9 | 0.8 | 25 | 672.12 | 1.6 | 12 | 0.6 | 100 | 1150.24 |
1.6 | 9 | 1 | 25 | 798.11 | 1.6 | 12 | 0.8 | 100 | 1342.59 |
1.6 | 9 | 0.2 | 50 | 608.92 | 1.6 | 12 | 1 | 100 | 1682.75 |
ρd (g/cm3) | FL (mm) | FC (%) | c (kPa) | φ (o) |
---|---|---|---|---|
1.6 | 0 | 0 | 41.60 | 39.20 |
6 | 0.2 | 54.28 | 40.44 | |
6 | 0.4 | 75.83 | 41.35 | |
6 | 0.6 | 84.82 | 43.96 | |
6 | 0.8 | 92.87 | 45.26 | |
6 | 1.0 | 133.22 | 45.51 | |
9 | 0.2 | 73.33 | 43.67 | |
9 | 0.4 | 83.41 | 45.24 | |
9 | 0.6 | 111.29 | 45.97 | |
9 | 0.8 | 116.86 | 46.64 | |
9 | 1.0 | 136.32 | 47.84 | |
12 | 0.2 | 88.84 | 44.86 | |
12 | 0.4 | 96.13 | 46.01 | |
12 | 0.6 | 114.86 | 47.71 | |
12 | 0.8 | 124.06 | 48.71 | |
12 | 1.0 | 173.38 | 49.88 |
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Li, G.; Liu, J.; Zhang, J.; Yang, Y.; Chen, S. Shear Strength Behaviors of Aeolian Sand Solidified by Microbially Induced Calcite Precipitation and Basalt Fiber Reinforcement. Materials 2023, 16, 5857. https://doi.org/10.3390/ma16175857
Li G, Liu J, Zhang J, Yang Y, Chen S. Shear Strength Behaviors of Aeolian Sand Solidified by Microbially Induced Calcite Precipitation and Basalt Fiber Reinforcement. Materials. 2023; 16(17):5857. https://doi.org/10.3390/ma16175857
Chicago/Turabian StyleLi, Gang, Jia Liu, Jinli Zhang, Yiran Yang, and Shufeng Chen. 2023. "Shear Strength Behaviors of Aeolian Sand Solidified by Microbially Induced Calcite Precipitation and Basalt Fiber Reinforcement" Materials 16, no. 17: 5857. https://doi.org/10.3390/ma16175857