Deformation monitoring: detect deformation as it happens

Permanently monitor parapets, guardrails, rockfall nets and retaining walls. Deformation from impact, material fatigue or slope movement is detected and reported immediately, even on long and remote sections.

Cable extension sensor on a fence post of a slope protection system, connected to the wire rope of the catch net

Your benefits

An impact doesn't report itself

A deformed protective structure no longer works the way it was designed to. If you only find the damage at the next patrol run, you lose the time in between.

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Even remote sections stay in view

Long sections and hard-to-reach areas are monitored permanently, without anyone needing to drive out regularly. Patrols can then be based on where something actually happened.

Immediate alert

As soon as a deformation occurs, for example from an impact, the system triggers the alert. Minutes pass between the event and awareness, instead of the time until the next patrol.

Retrofittable on existing installations

The sensors can be retrofitted to existing guardrails, barriers and rockfall nets. No rebuild or conversion of the protective structure is needed.

Objective data series

Continuous measurement delivers data on the real behaviour of the components under traffic loads and environmental influences. This is the basis for condition-based maintenance instead of interval-based servicing.

Sensor cable on the wire rope net of a catch barrier for capturing deformation

How it works

Four steps from movement to alert

The monitoring system is designed to detect deformation in real time and trigger an alert as soon as a deformation occurs. Which sensors are used depends on the component.

  1. 01

    Define measuring points

    We determine which components and sections are monitored and align the sensors with the hazard pattern: impact, material fatigue, settlement or slope movement.

  2. 02

    Capture change in position

    The sensors are connected to the component and permanently capture displacement and deformation. On rockfall nets, measurement runs via cable extension sensors on the wire rope, on components via a sensor on the component itself.

  3. 03

    Check against threshold

    Every reading is checked against the stored threshold. This keeps normal movement from temperature and traffic inconspicuous, while only the relevant change stands out.

  4. 04

    Alert and documentation

    If the threshold is exceeded, the alert goes out immediately. In parallel, the data series keeps growing and documents seamlessly when something changed.

Experience the event

When a vehicle hits the guardrail

An impact deforms the beam and reduces its protective effect. Start the scenario and see how the sensor captures the deformation and triggers the alert.

Demonstration only unremarkable
Sensor readout

Deformation

0mm

Section

Post 14, km 4.7

Threshold 10 mm within range

What is monitored

Three component groups, one measurement principle

What all three have in common is that a change in position reduces the protective or load-bearing effect without it being noticeable from the outside.

Road safety

Guardrails & Barriers

An impact deforms the protective structure and reduces its effectiveness, often without the party responsible reporting it. The deformation is detected and reported before the next vehicle movement meets it.

Rockfall

Rockfall nets & rock faces

A rockfall net keeps falling rock away from roads and railways, but in doing so loses capacity. Cable extension sensors on the wire rope report the event, so the net can be emptied and inspected in a targeted way.

Structure

Retaining walls & components

Displacement on retaining walls, cantilever walls and load-bearing components develops slowly. Continuous measurement separates uncritical movement from structural change.

Deformation is one of several measured variables. Tilting and settling is captured by tilt monitoring, crack progression in the component by crack monitoring. On retaining walls and load-bearing structures we combine them in the concept.

Typical applications

Where damage can stay undetected for a long time

The less often a patrol passes by, the greater the time during which a deformed protective structure has already lost its effect.

  • Guardrails at accident hotspots and in curve sections
  • Bridge parapets and protective structures on bridges
  • Rockfall nets over roads and railway lines
  • Retaining walls, cantilever walls and slope securing structures
  • Long sections without regular patrol runs

Route operation

Patrols by event, not by calendar

When the sensors report where something happened, patrols follow accordingly. This saves trips over unremarkable sections and shortens the time to repair at the location that actually needs it.

Slope protection

Rockfall nets and rock faces combined

On the rock face, displacement transducers capture crack movement, on the net, cable extension sensors capture the absorbed event. Together, they show whether the hazard is developing or whether it was a single event.

To the Slopes, Terrain & Guardrails industry

Deformation monitoring for your route

Whether guardrail, bridge parapet, rockfall net or retaining wall, we assess the section and align sensors and thresholds with the hazard pattern.

Peter Nater Peter Nater

Data platform

All readings on one platform

The sensors transmit their readings wirelessly to the data platform, where they are evaluated, documented and continuously checked against your thresholds.

  • AI-assisted data analysis
  • User-focused reporting
  • Continuous evaluation
  • Warning and alarm thresholds
  • Alerts by email and text message
  • Remote access around the clock
More on monitoring & alerting
Monitoring platform Sample view
Reading history within limits
Warning threshold
  • AI-assisted data analysis Condition within limits
  • User-focused reporting Report ready
  • Alerting Thresholds monitored
FAQ

Frequently asked questions about deformation monitoring

What is deformation monitoring?
Deformation monitoring is the continuous monitoring of movements and deformations on safety-relevant infrastructure elements such as bridge parapets, guardrails, rockfall nets and landslide-prone areas. Even small changes in position can indicate material fatigue, settlement, impact damage or progressing slope movement. The sensors capture these changes permanently and trigger an alert when a threshold is exceeded.
What is the difference to tilt monitoring?
Deformation monitoring captures the displacement and deformation of a component, in other words whether it has been pushed out of position or bent. Tilt monitoring captures the angle and settlement, in other words whether a structure is tipping or sinking into the ground. On retaining walls and load-bearing structures the two interact, which is why we combine them in the concept there.
Can monitoring be retrofitted to an existing guardrail?
Yes. Retrofitting to existing installations is the standard case. Guardrails, barriers and rockfall nets remain as they are, the sensors are added. No conversion of the protective structure is required, and the solution is also economical for long sections.
How quickly do I learn about an impact?
As soon as the deformation exceeds the stored threshold, the alert goes out automatically. This means the time between the event and awareness is not the time until the next patrol run, but the moment the threshold is exceeded. This is particularly relevant at accident hotspots and remote sections, where an impact often goes unreported entirely.
How is a rockfall net monitored?
Via cable extension sensors connected to the wire rope of the catch barrier. If the net absorbs a rockfall, the rope tension changes and the event is reported. In the Middle Rhine Valley project, two net levels at different heights are fitted this way over 45 metres, supplemented by displacement transducers on the rock face above.
What happens to the measurement data?
The data runs into the online data portal, where it is visualised and stored as a history. This creates seamless documentation that can be used for evidence towards clients and authorities and justifies maintenance measures.

Project inquiry

Let's talk about your route

Tell us about the section and the critical points. You will receive a reliable initial assessment at short notice, including suitable measured variables and sensors.

+49 6742 8599600 DE +41 41 670 00 11 CH info@infrasolute.com
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