TenCate Geosynthetics Netherlands bv

- Model S - Fiber Optic Sensing Geosynthetics

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TenCate GeoDetect S uses Fiber Bragg Gratings (FBG) technology to measure strain and/or temperature in soil structures.  Compact and easy to install, TenCate GeoDetect S is 1 meter wide by 10 meters long.  Two FBG optical fibers are embedded onto each TenCate GeoDetect S strip with 11 FBG sensors strategically inserted onto the two special optical fibers approximately 1 meters apart.  Strain measurements as low as 0.02% can be obtained with a spatial resolution of 0.5m.  Changes in temperature can also be monitored at 0.1oC.

TenCate develops and produces materials that function to increase performance, reduce costs and deliver measurable results by working with our customers to provide advanced solutions.

Our Product
The use of fiber optics in structural health monitoring systems for civil engineering applications have been widely used for many years. By integrating fiber optic sensing into a geosynthetic, TenCate GeoDetect is the first system designed specifically for geotechnical applications. The TenCate GeoDetect solution embodies a geocomposite fabric, fiber optics, software and instrumentation to provide an innovative solution for the multifunctional requirements of a geotechnical application e.g. in-plane drainage capability, anchoring interface with the soil, protection of the optical fiber, reinforcement, separation and filtration in addition to data capture. It combines the benefits of geosynthetic materials with the latest sensing and measurement technologies to provide owners with unique information that drives risk reduction and, in some cases, cost reduction. TenCate GeoDetect is a customizable solution created to meet the unique requirements of each project. Fiber Bragg Gratings (FBG). Brillouin scattering and Raman scattering are all proven fiber optic technologies that can be built into TenCate GeoDetect. These technologies measure strain, strain & temperature or temperature only changes in soil structures.

Strain as low as 0.02% can be measured with a spatial resolution of 0.5 m. With the proper software, changes in temperature can be monitored at 0.1 C° with a spatial resolution of 1.0 m.

TenCate GeoDetect can be used for long term monitoring, early warning system or short term performance evaluation. Continuous full time remote monitoring can transmit real time data for review and analysis. Project tolerances can be selected for early warning systems to be activated. Monitoring equipment can be accessed remotely or manually at the site depending on the needs of the project. TenCate GeoDetect can be customized to fit the needs of your project.

TenCate GeoDetect is an Innovation that Provides:

  • Assurance the design materials are meeting or exceeding expected factors of performance.
  • Early warning indication of changes in material performance or local conditions that were not expected, e.g. high strains, subsidence, voids, etc.
  • A customized solution that will provide the owner with increased operating safety margin on certain demanding soil reinforcement applications, e.g. walls, steep slopes, embankments, levees, foundations, soft soils and subsidence (karst or mine) regions. This information can be used to lower long-term liability.
  • More effective means of monitoring geosynthetic materials and soil structures in demanding applications, leading to better land use, and lower overall project costs.
  • A positive impact on sustainability with lower risk and longer lasting structures due to its ability to monitor appropriate performance.

Our Applications
The TenCate GeoDetect solution is ideal for:

  • Walls
  • Embankments
  • Slopes
  • Levees
  • Roads/Rails
  • Landfills
  • Pipelines

Our Service
TenCate offers complete technical assistance. Our comprehensive service includes assistance during design, specification and throughout the process. TenCate makes the difference.

MD: Machine Direction, also direction of the optical cables
CD: Cross Direction
(1) Custom roll sizes available

The values given are average values obtained in our laboratory and in accredited testing institutes. The information given in this datasheet is to the best of our knowledge true and correct. However new research results and practical experience can make revision necessary. The right is reserved to make changes without notice at any time. No guarantee or liability can be drawn from the information mentioned herein.

TenCate Geosynthetics assumes no liability for the accuracy or completeness of this information or for the ultimate use by the purchaser. TenCate Geosynthetics disclaims any and all express, implied, or statutory standards, warranties or guarantees, including without limitation any implied warranty as to merchantability or fitness for a particular purpose or arising from a course of dealing or usage of trade as to any equipment, materials, or information furnished herewith. This document should not be construed as engineering advice.

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