Research Article
Deformation Failure and Support Test of Surrounding Rock in Deep Arched Roadway with Straight Wall
Table 1
Main physical and mechanical parameters of different proportioning specimens.
| Serial number | Material ratio | Volumetric weight (kN/m3) | Tensile strength (MPa) | Compressive strength (MPa) | Elastic modulus (GPa) | Internal friction angle (°) | Cohesion (kPa) | Quartz sand: cement: plaster |
| 1 | 1 : 0.30 : 0.70 | 19.1 | 0.46 | 5.33 | 0.65 | 32.4 | 0.15 | 2 | 1 : 0.40 : 0.60 | 18.5 | 0.56 | 6.34 | 0.63 | 31.5 | 0.13 | 3 | 1 : 0.50 : 0.50 | 19.0 | 0.83 | 7.57 | 0.54 | 30.6 | 0.14 | 4 | 1 : 0.60 : 0.40 | 18.9 | 1.01 | 8.02 | 0.77 | 29.8 | 0.16 | 5 | 1 : 0.70 : 0.30 | 19.1 | 1.51 | 13.01 | 0.78 | 29.6 | 0.11 | 6 | 1 : 0.15 : 0.34 | 18.9 | 0.23 | 2.27 | 0.81 | 28.3 | 0.12 | 7 | 1 : 0.19 : 0.30 | 19.9 | 0.26 | 3.80 | 0.86 | 28.6 | 0.14 | 8 | 1 : 0.25 : 0.24 | 19.3 | 0.62 | 6.07 | 0.83 | 28.4 | 0.13 | 9 | 1 : 0.30 : 0.19 | 19.0 | 0.64 | 7.11 | 0.84 | 32.6 | 0.17 | 10 | 1 : 0.34 : 0.15 | 19.2 | 0.89 | 8.99 | 0.79 | 32.8 | 0.11 | 11 | 1 : 0.11 : 0.23 | 18.6 | 0.06 | 1.64 | 0.77 | 33.6 | 0.10 | 12 | 1 : 0.13 : 0.20 | 19.3 | 0.13 | 2.20 | 0.65 | 31.7 | 0.15 | 13 | 1 : 0.17 : 0.16 | 18.6 | 0.27 | 3.51 | 0.69 | 31.5 | 0.14 | 14 | 1 : 0.20 : 0.13 | 18.8 | 0.34 | 4.27 | 0.62 | 32.0 | 0.09 | 15 | 1 : 0.24 : 0.19 | 18.6 | 0.41 | 5.12 | 0.66 | 29.6 | 0.08 | 16 | 1 : 0.08 : 0.18 | 18.7 | 0.05 | 0.53 | 0.64 | 31.7 | 0.11 | 17 | 1 : 0.10 : 0.15 | 18.3 | 0.07 | 1.50 | 0.58 | 33.6 | 0.12 | 18 | 1 : 0.56 : 0.56 | 18.4 | 0.11 | 1.79 | 0.59 | 33.5 | 0.14 | 19 | 1 : 0.15 : 0.10 | 18.3 | 0.13 | 1.95 | 0.58 | 32.4 | 0.07 | 20 | 1 : 0.18 : 0.08 | 18.6 | 0.20 | 1.80 | 0.62 | 32.7 | 0.13 | 21 | 1 : 0.06 : 0.14 | 18.2 | 0.04 | 0.71 | 0.63 | 30.1 | 0.11 | 22 | 1 : 0.08 : 0.12 | 18.3 | 0.05 | 1.01 | 0.71 | 32.9 | 0.09 | 23 | 1 : 0.10 : 0.11 | 18.1 | 0.06 | 1.62 | 0.72 | 33.5 | 0.14 | 24 | 1 : 0.12 : 0.08 | 18.7 | 0.17 | 2.20 | 0.54 | 33.8 | 0.13 | 25 | 1 : 0.14 : 0.06 | 18.6 | 0.13 | 2.06 | 0.53 | 30.3 | 0.12 |
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Note: The quality of water in the process of mixing different materials is always one-sixth of the total mass of the materials.
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