Research Article
Study on Joint Damage of Double Prefabricated Fragments Penetrating Finite Thickness Concrete
Table 10
Orthogonal optimization of joint damage location and joint degree of each group.
| Number | Joint damage location | Falling point spacing | Distance from the flying-out point to the intersection line (fragment 1) | Distance from the flying-out point to the intersection line (fragment 2) | Degree of association (overall) | Degree of association (remove pit opening) |
| 1 | Front pit + tunnel | 20 | 5.36 | 20.7 | 2 | 1 | 2 | Front pit + tunnel + penetration | 20 | −34.65 | −56.9 | 3 | 2 | 3 | Front pit | 20 | −118.56 | 6.86 | 1 | 0 | 4 | Front pit | 20 | 13.2 | −98.56 | 1 | 0 | 5 | Front pit | 20 | −5.36 | 31.1 | 1 | 0 | 6 | Front pit | 30 | −130.52 | −48.94 | 1 | 0 | 7 | Front pit + tunnel | 30 | −4.12 | 13.2 | 2 | 1 | 8 | Front pit | 30 | −50 | −96.13 | 1 | 0 | 9 | Front pit + tunnel + penetration | 30 | 51.96 | 13.8 | 3 | 2 | 10 | Front pit | 30 | 65.8 | 115.9 | 1 | 0 | 11 | Front pit + tunnel | 40 | −69.28 | 19.96 | 2 | 1 | 12 | Front pit | 40 | 23.1 | −92.36 | 1 | 0 | 13 | Front pit + tunnel + penetration | 40 | −6.2 | 10.37 | 3 | 2 | 14 | No | 40 | −69.26 | 80 | 0 | 0 | 15 | Front pit + tunnel | 40 | 127.86 | 74.5 | 2 | 1 | 16 | No | 50 | −32.8 | −86.8 | 0 | 0 | 17 | No | 50 | −109.69 | 11.5 | 0 | 0 | 18 | Penetration | 50 | 28.56 | 70.7 | 1 | 1 | 19 | Front pit + tunnel + penetration | 50 | 6.6 | 20 | 3 | 2 | 20 | Penetration | 50 | 186.6 | 171.76 | 1 | 1 | 21 | No | 60 | −5.34 | 15.9 | 0 | 0 | 22 | No | 60 | −45.36 | 69.3 | 0 | 0 | 23 | No | 60 | 60 | 4.85 | 0 | 0 | 24 | No | 60 | 57.7 | 98.56 | 0 | 0 | 25 | Front pit | 60 | 85.34 | 93.24 | 1 | 0 |
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