Research Article
Grouting Reinforcement of Large Building Foundation over Old Gob Areas: A Case Study in Huaibei Mining Area, China
Table 1
Test results of the mechanical properties of the rock samples.
| Rock samples | Rc (MPa) | Rt (MPa) |
| K4 mudstone | 1 | 2.49 | — | K4 sandstone | 1 | 19.13 | — | K6 mudstone | 1 | 0.65 (drying) | — | 2 | 1.10 (drying) | — | 3 | 0.49 (drying) | — | Average value | 0.75 | — | K7 mudstone | 1 | 19.26 | 0.48 | K7 igneous | 1 | 46.93 | — | 2 | 54.18 | — | 3 | 33.09 | — | Average value | 44.43 | — |
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