NS Stations, Netherlands | Fabian Duursma

Vibration monitoring under own management

During a major renovation at the NS main railway station in Groningen, the Netherlands, we measure vibrations under our own management to ensure that the historical building is not damaged.

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Protection of the historical railway station in Groningen

The historical main railway station located in the city of Groningen was first opened in 1866. Currently, a huge construction project is taking place to update the station area to fit the needs of our modern age. We at NS Stations find it extremely important that the historical building suffers no damage, such as subsidence, due to the effects of the vibrations during the construction work.

"The modifications are quite radical. Namely, there will be a new passenger tunnel from the station square at the front of the station building to the platforms at the rear of the building. There will also be a bicycle tunnel underneath the building. Thanks to Omnidots, we will be alerted immediately if there is too much vibration in the foundations of the station building. We hope, of course, that this does not happen, but if it does we will receive a text message and we will immediately halt the construction work to check what is going wrong. So the alerts and the live measurement are very important for us.

In total, we installed 10 SWARMs onto the foundation beams in the basement of the building. The construction work has not yet started, so we are first doing a baseline measurement. This is to account for the continuous vibrations received from trains arriving and departing from the station. Later, when the construction begins, we can then filter out these standard vibrations.

We requested several quotes for vibration measurement equipment but we chose to work with Omnidots. This is because with Omnidots we do not have to rent expensive equipment, but immediately get the vibration meters as our own property. We found the installation very easy to set up, the online platform very accessible, and Omnidots' solution cost-effective. We first configured all of the settings on Honeycomb and then easily attached the SWARMs in the basement.

We do the vibration monitoring under our own management and have hired an expert firm to help us analyze the measurement results. The building contractor also carries out vibration measurements, but we want to be sure that we will be alerted immediately if our premises vibrate too much. This gives us a good sense of security, which is very important for this old historical and monumental building.

For us, this project with Omnidots is done as a trial. We are remodeling many more stations and we may also want to use Omnidots' sensors for vibration measurement in the future."

Benefits for NS Stations

For NS Stations, these are the biggest advantages of working with Omnidots:

  • Easy installation
  • Favorable price
  • Immediate alert in the event of violations of standards
  • Clear online platform

Learn more about Omnidots - All-in-1 total solution for monitoring and reporting vibrations.

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