Double-line box tunnel lining crack pattern and quantity statistics
| Tunnel segment number | Crack distribution characteristics | ||
|---|---|---|---|
| Longitudinal cracks | Total length of cracks/cm | ||
| Quantity | Position | ||
| #7 | 3 | Roof, upper left corner | 62 |
| #8 | 4 | Roof, upper right corner | 109 |
| #9 | 9 | Roof, baseplate, upper right corner | 228 |
| #10 | 8 | Baseplate, lower left corner, lower right corner | 206 |
| #11 | 4 | Baseplate, lower left corner, lower right corner | 105 |
| #12 | 2 | Lower left corner | 56 |
| Summary | 30 | Roof, baseplate lower left corner, four corners | 766 |
| Damage type | Mainly large eccentricity damage | ||
| Cracking range | The hanging wall cracking range is 140 cm (2.92 D), the footwall cracking range is 96 cm (2.0 D). The damage scope of the hanging wall is obviously larger than that of the footwall | ||
| Tunnel segment number | Crack distribution characteristics | ||
|---|---|---|---|
| Longitudinal cracks | Total length of cracks/cm | ||
| Quantity | Position | ||
| #7 | 3 | Roof, upper left corner | 62 |
| #8 | 4 | Roof, upper right corner | 109 |
| #9 | 9 | Roof, baseplate, upper right corner | 228 |
| #10 | 8 | Baseplate, lower left corner, lower right corner | 206 |
| #11 | 4 | Baseplate, lower left corner, lower right corner | 105 |
| #12 | 2 | Lower left corner | 56 |
| Summary | 30 | Roof, baseplate lower left corner, four corners | 766 |
| Damage type | Mainly large eccentricity damage | ||
| Cracking range | The hanging wall cracking range is 140 cm (2.92 D), the footwall cracking range is 96 cm (2.0 D). The damage scope of the hanging wall is obviously larger than that of the footwall | ||