Research Article
Analysis of U-Shaped Steel Failure Characteristics in Rock Burst Roadway and Design of Stable Structure and Constant Resistance O-Shed
Table 1
U-shaped steel and card material parameters.
| | | Density (kg/m3) | Elastic modulus (GPa) | Poisson’s ratio | Yield strength (MPa) | Tensile strength (MPa) | Ultimate strain (%) |
| | U-shaped steel | 7800 | 210 | 0.31 | 270 | 530 | 20 | | Clamps | 7800 | 210 | 0.3 | 720 | 908 | 18 |
|
|
