Research Article
Research on the Application of Prefabricated Load-Bearing Structure in Prefabricated Roadway in Filling Body
Table 3
Parameters of the uniaxial compressive strength fitting model of filling materials.
| | Cement-to-sand ratio | Material strength (MPa) | Bulk modulus (MPa) | Shear modulus (MPa) | Cohesion (MPa) | Internal friction angle (degree) | Density (kg/m3) | Tensile strength (MPa) |
| | 1 : 3 | 4.3 | 780 | 560 | 3.2 | 40 | 1.807 | 0.85 | | 1 : 4 | 3.2 | 565 | 420 | 3.0 | 36 | 1.799 | 0.78 | | 1 : 6 | 2.1 | 482 | 355 | 2.4 | 32 | 1.797 | 0.76 | | 1 : 8 | 1.8 | 346 | 290 | 2.1 | 31 | 1.794 | 0.72 |
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