Monitoring

Get an excellent overview of available monitoring & scanning techniques to get a grip on the life-expectancy of your tunnel, it’s installations and it’s software. A must see for the digital asset manager of the future.

Hosted by:

Vanessa Di Muro

Vanessa Di Muro - CERN

Karim El Laham

Karim El Laham - Fugro Rail


Speakers

Reinier Brongers

Reinier Brongers

StabiAlert

Frederic Castille

Frederic Castille

Fischer Cobemabel

Fabio Panella

Fabio Panella

ARUP

Daniele Di Fiore

Daniele Di Fiore

Tecne - Gruppo Autostrade per l'Italia S.p.A

Edo Noordermeer

Edo Noordermeer

Fugro NL Land B.V.

Nicas van den Brink

Nicas van den Brink

Trelleborg Ridderkerk


Speakers

Reinier Brongers

Reinier Brongers

StabiAlert

Frederic Castille

Frederic Castille

Fischer Cobemabel

Fabio Panella

Fabio Panella

ARUP

Daniele Di Fiore

Daniele Di Fiore

Tecne - Gruppo Autostrade per l'Italia S.p.A

Edo Noordermeer

Edo Noordermeer

Fugro NL Land B.V.

Nicas van den Brink

Nicas van den Brink

Trelleborg Ridderkerk


Workshop contents

Workshop

Monitoring

Joint and deformation monitoring

By Reinier Brongers

In the latest COB tunnel deformation monitoring report for emerged tunnels various modern monitoring tools are described. For instance to monitor the movements of tunnel sections over the joint f.i. with a 3D joint sensor. In the past the monitoring was done with 3 potenial meters, each demanding a node to communicate with a gateway. The installation is demanding time and the dimensions of a cabinet to cover the meters is big. We will present data form various tunnel projects thus showing attendees the advantages of having all data in one screen. This new generation of sensors is very compact, easy to install and is not demanding any additional infrastructure or support. They do have their own battery and SIMCard and will work everywhere there is a mobile network available. The sensors also measures the temperature. Alarm settings can be given in and frequency can be changed in time if needed. Data can be imported by means of an API to any platform, tidal data as well as weather data can be integrated to the sensor data. Besides this we will shortly go into the deference between high frequency tiltmonitoring and static tilt monitoring. High frequency monitoring will show the real dynamic behaviour of any object.

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Workshop

Monitoring

Setting an anchor for the future

By Frederic Castille

Fischer offers digital solutions for the building’s entire life cycle. Its range of products comprises global innovations in robotics and sensor technology, BIM services, the fischer FiXperience design software and digital services such as the fischer plug-finder app for selecting products. These solutions optimize the planning, construction, and operation of buildings. Creeping, shrinking, and setting construction materials - changes and deformations such as these present structural engineers with challenges when it comes to tunnels, wind turbines and bridges. It’s a good thing that our SensorAnchor provides a reliable, all-in-one solution offering maximum data transparency through the real-time transfer of preload and operating forces. This provides an early automatic warning for critical connections, allowing you to easily and conveniently monitor the data on the end device of your choice, resulting in minimal maintenance for structures of all sizes. During the workshop we will dive deeper into this technology.

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Workshop

Monitoring

Case Study and CBA in the Energy Sector

By Fabio Panella

Civil engineering is rapidly embracing digital innovations, and this trend extends to tunneling projects. In collaboration with UK Power Networks, we conducted a case study on automated tunnel inspections. Our approach involved robotic data collection and the utilization of machine learning-powered asset management tools. During the workshop, we will discuss the project’s main outcomes and lessons learnt. Additionally, we’ll provide an exhaustive cost-benefit analysis, considering factors such as enhanced safety, cost reduction, and improved repeatability.

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Workshop

Monitoring

How to estimate and how to decide ; a practical guide for tunnel relining; first experiences and lessons learned

By Daniele Di Fiore

Autostrade per l’Italia, with its engineering firms TECNE, has developed an approach to refurbish existing tunnels named Tunnel Renewal Strategy (“TRS”). TRS aims to achieve service life’s renovation through 8 different relining treatments. Over the last three years the design of the solutions has been developed and studied and key factors, leading to success or to the need for further improvements, have been identified. Beyond this, the method for selecting the right treatment among the solutions is driven by a multicriteria analysis including a supporting decision tool, based on asset management best practice, to account for others then technical aspects. Sound decision making is becoming part of the asset management strategy of the Organization, involving the Client and the Contractor in a continuous exchange of insights about budget limits, service life of the solutions and needed technologies to minimize the impact and keep serviceability of a very busy infrastructures.

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Workshop

Monitoring

Monitoring the integrity of the Rotterdam metro tunnel

By Edo Noordermeer

We present the monitoring system installed in the Rotterdam metro tunnel to safeguard the integrity of the immersed joints for the coming 10 years. In 2015, large-scale damage was detected in the immersion joints of the metro tunnel in Rotterdam. It was found that the Gina seals in the joints were pushing themselves inwards, causing damage both to the concrete tunnel walls and to the fixation of the support structures. An extensive renovation project was set up to repair the damage and to ensure that the tunnel joints are fit to last another 50 years. As part of this effort, an extensive sensing system was installed to permanently monitor the integrity of the joints. The system consists of a variety of sensors, measuring amongst others joint widths, shape and position of the Gina profiles, forces in the fixation brackets, water pressure and temperatures. Several systems were custom developed for application in this tunnel. In total, more than 1500 sensors are now continuously measuring the state of the tunnel joints. Data from all sensors is automatically transferred from the tunnel to a central cloud-based server and presented in near real-time via interactive dashboards in an online portal. Thresholds have been configured for the various measurements - when a measurement exceeds a threshold, an alarm is raised automatically, and a ticket is generated for follow-up action. The monitoring system provides invaluable input to the tunnel asset management team, not only about the current state of the tunnel, but also predicting future problems early, before they lead to damage. In this presentation, we describe the motivation for installing this unique monitoring system. We present the design of the various sub-systems, as well as the associated data processing pipeline, visualization dashboards and ticketing system for follow-up actions. We also present results from the first two years of measurements. Finally, we give some recommendations and good practices for future tunnel monitoring projects.

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Workshop

Monitoring

Data acquisition within the sealing system of an immersion joint

By Nicas van den Brink

We will dive into the added value that can be created for the asset management of tunnels when attention is given to collection of immersion joint data. Which stakeholders should initiate data collection and who will benefit from this information. What aspects of tunnel sealing systems do we want to monitor during the tunnels lifetime to have an enhanced understanding on remaining design life? To answer these questions we have to create a clear overview of maintainance issues and uncertainties that come across in various tunnel projects. Practical examples will be given from various case studies encountered by Trelleborg.

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