A2 Advanced Monitoring
A2 Advanced Monitoring offers an exciting opportunity to secure your asset by using a fibre optic cable.
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In recent years, the use of fibre optic sensors has provided innovative and cost-saving monitoring solutions to a number of projects where conventional systems were inadequate to satisfy the project requirement. The fibre optic cable provides a continuous measurement of temperature and/or strain over a long distance at any location along the cable.
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Unlike conventional systems such as thermistors or strain gauges, it provides huge benefits to monitor linear assets such as piles and diaphragm walls, it can also be used for other assets such as tunnels, railway tracks, power cables, pipelines, geogrids in platforms or earthworks. This system has a reliable and long design life, which can be used to reveal structure behaviour for decision making.
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Importantly fibre optic cables offers the additional safety benefit of reducing / eliminating manual handing (health and safety) risks on site thanks to its simplified installation method and connections being outside of the reinforcement.
A2AM has both design and construction experience and so is competent in working closely with the project team to offer the most cost-effective and safe monitoring solution for your assets.
The A2AM distributed temperature integrity testing (DTIT) system is based on the testing methods described in ASTM standards for measuring the temperature profiles within a deep foundation element constructed using cast-in-situ concrete. The DTIT method utilises the heat developed during the concrete curing phase to evaluate the homogeneity and integrity of the concrete mass within the embedded concrete element. This method can be applied to deep foundation piles, diaphragm walls, barrettes, dams, concrete slabs, post tensioned slabs, and similar. Instead of using conventional thermistors, which are typically spaced apart at a distance of ~300mm, the fibre optic sensor is continuous and used to assess the full integrity of the embedded element.
