Jul 18, 2018

SAAV installs into bent and spiralled inclinometer casing to monitor at Zelazny Most

Tyler Morency
6 years ago

SAAV installs into bent and spiralled inclinometer casing to monitor at Zelazny Most

Measurand engineers travelled to the largest tailings facility in Europe while Measurand distributor, Budokop Sp. z o.o., installed a 156-metre SAAV model ShapeArray to monitor deformation. The tailings facility at Zelazny Most, Poland stores copper tailings in a confining embankment dam ‘ring dam’ that measures approximately 14.3 km in length.

Construction on the dam began in 1977 and is planned to continue until 2042 when the nearby copper reserves are exhausted. Continual raising of the crest has increased the height to approximately 60 metres above the original ground surface.

Monitoring subsurface deformation at the site is especially important because of the area’s complex geological conditions. During the ice age, at least three major glaciations passed over in the area, which left the soil and clay deposits from the period “intensely sheared, folded and generally severely disturbed” [1]. The resulting deposits “exhibit an extremely pronounced spatial variability, making the formulation of realistic geological and geotechnical models impracticable” [1]. Thus, owners KGHM Polska Miedz rely heavily on real-time instrumentation data to ensure the dam is performing within design limits. 

An extensive suite of geotechnical instrumentation monitors the site continuously. SAAV was installed into a partially sheared and spiralled inclinometer casing that manual inclinometers could no longer enter to take readings.

[1] M. Jamiolkowski, “Soil mechanics and the observational method: challenges at the Zelazny Most copper tailings disposal facility,” Géotechnique, vol. 64, no. 8, pp. 590–618, Jun. 2014.

  • 1993

    The Beginning

    Measurand is established in Fredericton, New Brunswick
  • 1994

    Bend sensor development

    Measurand develops and patents fiber optic bend and position sensors for the medical and automotive sectors

    U.S. Patent 5,321,257

  • 1995

    Canadian Space Agency

    Receives funding from the CSA to develop sensor technology that ultimately leads to invention of ShapeTape

    U.S. Patent 5,633,494

  • 1999

    Patent on fiber optic sensor

    Measurand receives patent for "Fiber Optic Bending and Positioning Sensor" issued June 29, 1999

    Canadian Patent 2,073,162

  • 2001

    ShapeTape & ShapeHand debut

    Measurand designs and develops innovative motion capture technology

    U.S. Patent 6,127,672, 6,563,107

  • 2002

    Measurand Attends the ICPMG

    First contact with the geotechnical sector at the International Conference on Physical Modelling in Geotechnics (ICPMG)
  • 2004


    Design patent application sent about a new product designed to meet the specific needs of the geotechnical industry

    U.S. Patent 6,127,672, 6,563,107

  • 2005-08


    Measurand debuts ShapeWrap motion capture technology for the film and animation industry

    U.S. Patent 7,296,363

  • 2006

    Malibu installation

    ShapeAccelArray installed for ground monitoring for the first time​ in Malibu, CA

    Canadian Patent 2,472,421

  • 2007


    Suite of instrumentation developed for motion capture within Magnetic Resonance Imaging (MRI) machines

    U.S. Patent 7,296,363

  • 2011

    SAAScan launched

    Built for rapid deployment and repeated use

    Canadian Patent 2,472,421

  • 2014

    SAAX launched

    Purpose-built for heavy-duty horizontal installation

    Canadian application 2,815,199 & 2,815,195

  • 2017

    SAAV launched

    The only geotechnical instrument with a patented cyclical installation method

    Cyclical Sensor Array, Canadian application 2,815,199 & 2,911,175