Table 3 Strengthening support parameters.
From: Non-uniform failure mechanism and stability control of mining roadway under deviatoric stress field
No | Anchor cable size | Type and quantity of anchoring agent | The specific location and number of supplementary hits |
|---|---|---|---|
1 | φ28.6 mm × 8300 mm | K2870 (2), Z2870 (2) | One every 2 m along the roadway strike |
2 | φ28.6 mm × 8300 mm | K2870 (2), Z2870 (2) | Along the direction of the maximum development depth of the plastic zone, 1 root is added every 2 m |
3 | φ21.8 mm × 6300 mm | K2370 (1), Z2370 (2) | Coal wall side and coal pillar side |
