Research Article
Layered Grouting Technology Based on a Comprehensive Water-to-Cement Ratio for the Overlying Loess Stratum of Urban Shallow Tunnels
Table 6
Comprehensive test conditions.
| | Test number | W : C | W (%) |
| | II-1 | 0.8 : 1 | 9 | | II-2 | 0.8 : 1 | 12 | | II-3 | 0.8 : 1 | 15 | | II-4 | 0.8 : 1 | 18 | | II-5 | 0.8 : 1 | 21 | | II-6 | 1.0 : 1 | 9 | | II-7 | 1.0 : 1 | 12 | | II-8 | 1.0 : 1 | 15 | | II-9 | 1.0 : 1 | 18 | | II-10 | 1.0 : 1 | 21 | | II-11 | 1.2 : 1 | 9 | | II-12 | 1.2 : 1 | 12 | | II-13 | 1.2 : 1 | 15 | | II-14 | 1.2 : 1 | 18 | | II-15 | 1.2 : 1 | 21 |
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