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A1 Highway, Silesia, Poland Courtesy NeoStrain | Krakow | Poland

?. A1 Highway, Silesia, Poland Courtesy NeoStrain | Krakow | Poland. A1 Highway, Silesia, Poland Courtesy NeoStrain | Krakow | Poland. A1 Highway, Silesia, Poland. Highway embankment reinforcement Geotextile base layer 4 layers of geogrids. Monitoring systems.

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A1 Highway, Silesia, Poland Courtesy NeoStrain | Krakow | Poland

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  1. ?

  2. A1 Highway, Silesia, PolandCourtesy NeoStrain | Krakow | Poland

  3. A1 Highway, Silesia, PolandCourtesy NeoStrain | Krakow | Poland A1 Highway, Silesia, Poland

  4. Highway embankment reinforcement • Geotextile base layer • 4 layers of geogrids

  5. Monitoring systems • Monitoring Program Comprises 2 systems • 1 Monitoring of vertical movements (the detection of possible faults or sinkholes) • 2 Monitoring deformation of the geogrid reinforcement • Purpose • Identify areas of deformation (sink holes) • Minimize reaction time for repair • Data Acquisition System (by NeoStrain) • Measurements every hour • Data sent to central processing unit • All data keptfor 30 years

  6. Monitoring systems • Monitoring Program Comprises 2 systems • 1 Monitoring of vertical movements

  7. Anchor Wire Extensometer Anchor Vertical movements cause elongation of the wire extensometer Wire is connected to 200mm range Model 4450 VW Displacement Transducer

  8. Highway embankment reinforcement • Geotextile base layer • 4 layers of geogrids

  9. Wire Extensometers Anchor points Location of the sink hole is indicated by the intersection of 2 wire extensometers

  10. Monitoring systems • Monitoring Program Comprises 2 systems • 2 Monitoring deformation of the geogrid reinforcement

  11. Monitoring of geogrid Consists of vibrating wire displacement transducers permanently mounted, 2m x 2m spacing, on the first layer of geogrid Measurement of increasing deformation indicates increasing load carried by the geogrid Special clamps attach vibrating wire displacement transducers in such a way not to damage or weaken the performance of the geogrid

  12. Highway embankment reinforcement • Geotextile base layer • 4 layers of geogrids

  13. A1 Highway, Silesia, PolandCourtesy NeoStrain | Krakow | Poland

  14. A1 Highway, Silesia, PolandCourtesy NeoStrain | Krakow | Poland

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