Research Article
Health Monitoring System with Hybrid Laser Sensor Networks and Cloud Computing for Subway Tunnels
Table 7
Comparison of PIV monitoring displacement and new monitoring method calculation displacement.
| Loading method | Target | Displacement X (mm) | Displacement Z (m) | New method | PIV | New method | PIV |
| Loading point 1 50 N | No. 1 | 3 | 3 | −3 | −3 | No. 3 | −3 | −3 | −3 | −3 | No. 5 | 2 | 3 | −1 | −2 | No. 7 | −3 | −3 | −2 | −3 | Point 1 | — | — | −9 | −8 |
| Loading point 1 100 N | No. 1 | 5 | 6 | −5 | −5 | No. 3 | −5 | −6 | −5 | −5 | No. 5 | 3 | 3 | −2 | −2 | No. 7 | −5 | −5 | −2 | −2 | Point 1 | — | — | −16 | −15 |
| Loading point 2 50 N | No. 1 | 1 | 1 | −1 | −1 | No. 3 | −7 | −8 | −7 | −7 | No. 5 | 1 | 1 | 0 | 1 | No. 7 | −6 | −6 | −3 | −3 | Point 1 | — | — | −3 | −3 |
| Loading point 2 100 N | No. 1 | 2 | 2 | −2 | −2 | No. 3 | −11 | −10 | −11 | −11 | No. 5 | 2 | 2 | −1 | −2 | No. 7 | −10 | −10 | −5 | −5 | Point 1 | — | — | −6 | −6 |
| Loading point 3 50 N | No. 1 | 5 | 6 | −5 | −5 | No. 3 | −1 | −1 | −1 | −1 | No. 5 | 6 | 6 | −3 | −3 | No. 7 | 0 | −1 | 0 | −1 | Point 1 | — | — | −6 | −7 |
| Loading point 3 100 N | No. 1 | 9 | 10 | −9 | −9 | No. 3 | −2 | −2 | −2 | −2 | No. 5 | 10 | 9 | −5 | −6 | No. 7 | −2 | −2 | −1 | −1 | Point 1 | — | — | −10 | −11 |
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