Research Article
Effect of Subway Excavation with Different Support Pressures on Existing Utility Tunnel in Xi’an Loess
Table 2
Calculation table of support pressure.
| Condition | Calculation method | Overburden pressure () | Top edge support force () | Lower edge support force () |
| 1 | All-covering theory | 341.700 | 266.024 | 354.882 | 2 | The theory of loose earth pressure under the incomplete soil arching effect considering cohesion | 218.724 | 177.481 | 266.339 |
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