Research Article
Layered Grouting Technology Based on a Comprehensive Water-to-Cement Ratio for the Overlying Loess Stratum of Urban Shallow Tunnels
Table 3
Shear strength index of reinforced loess.
| | Test number | | c (kPa) | (°) | | = 100 kPa | = 200 kPa | = 300 kPa |
| | T-1 | 206 (↑37%) | 412 (↑127%) | 618 (↑154%) | 82.02 (↑36%) | 30.5 (↑8%) | | T-2 | 223 (↑112%) | 446 (↑214%) | 668 (↑222%) | 100.10 (↑378%) | 31.8 (↑25%) | | T-3 | 162 (↑8%) | 324 (↑62%) | 486 (↑135%) | 105.15 (↑866%) | 26.6 (↑20%) | | T-4 | 216 (↑34%) | 432 (↑129%) | 649 (↑157%) | 110.16 (↑222%) | 31.3 (↑12%) | | T-5 | 232 (↑71%) | 464 (↑176%) | 697 (↑196%) | 94.82 (↑352%) | 32.5 (↑25%) | | T-6 | 181 (↓11%) | 363 (↑58%) | 544 (↑89%) | 88.30 (↑28%) | 28.4 (↓7%) | | T-7 | 211 (↑5%) | 422 (↑59%) | 633 (↑125%) | 101.54 (↑166%) | 30.9 (↑2%) | | T-8 | 201 (↓17%) | 402 (↑22%) | 604 (↑64%) | 98.46 (↑33%) | 30.1 (↓11%) | | T-9 | 225 (↑5%) | 430 (↑54%) | 645 (↑113%) | 93.62 (↑90%) | 31.2 (↓3%) |
|
|
