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1. Index
2. CMCS at BRE
3. Development of AMS
4. Non-destructive testing of Marine Jetties
5. Fixed sensor monitoring of Diaphragm walls
6. Monitoring Buildings during Redevelopment
7. Tunnel Monitoring
8. Embankment Systems
9. Loggers
10. Tunnel Distortion Monitoring
11. In-place tilt monitoring system
12. Tunnels Interaction System
13. Re-Development of Small Properties
14. Viaducts
15. DLR at Mansion House
16. Tunnel Monitoring System (Discrete beams)
17. CTRL 240
18. Dams
19. Electro-levels
20. Movement indicators
21. Results of Charing Cross Load Cells
22. Non-destructive testing of concrete structures
23. Radio in Construction Monitoring
24. Settlement Reducing Piles
25. Land Surveying and Total Station Monitoring
26. Vibration Monitoring
27. Monitoring the complete strain history of concrete elements
28. Past CMCS Projects

The use of water levels

In December 1998, CMCS were contracted to monitor an 8000 ton concrete river box (25m wide x 7m) being pushed through the south side of a 11m high embankment while both local and Intercity high speed trains ran their normal schedule. The embankment was frozen before the push through started.

The monitoring system consisted of seven runs of linked beams, each 5m long, and covering 30m either side of the centre line of the river box. Each beam was attached to the embankment via 1.5m anchor posts driven through the ballast and into the fill to monitor both vertical and horizontal movements with resolutions of 0.1mm and a range of 500 mm and 50 mm respectively.
Total movements monitored by the system were in the order of 200 mm.