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Vibration Monitoring
A.F. Howland Associates are now please to offer vibration monitoring as one of our core services. Vibration monitoring is a useful tool in mitigating the risk of damage to structures due to activities that are known to produce ground borne vibrations.
Such activities include but are not limited to:
- Pile Driving
- Bridge Monitoring
- Heavy Transport Monitoring
- Construction Activities
- Demolition Activities
- Directional Drilling
Using the Instantel Minimate III vibration monitor an A.F. Howland Associates technician can attend and assess any given site, position the vibration monitoring equipment in the appropriate location and begin monitoring. The vibration monitoring equipment can be set with both audible and visual alarms to indicate to site personnel when the maximum tolerable vibration levels have been exceeded. Thus the site personnel can cease works to avoid vibration related cosmetic damage to a given structure.
The attending A.F. Howland Associates technician will download the recorded data daily and analyse the data using Instantel’s BlastwareTM software. Daily vibration event reports are produced, presented as histograms. The daily reports detail the peak component particle velocity in mm/s-1 (PPV) values as well as the frequency in Hz.
On completion of the site works A.F. Howland Associates will produce a report that compares the vibration levels recorded to the vibration levels set out in British Standard BS 7385: Part 2: 1993 `Evaluation and measurement for vibration in buildings Part 2, in order to determine whether the vibrations recorded are likely to have caused any cosmetic damage to the structure in question.