Petrokimia Gresik

SECTOR: Urban Construction & Geohazard

Gresik, Indonesia

Partners

Underwater settlement monitoring

Petrokimia Gresik, a fertilizer company, located in Gresik, East Java, Indonesia planned to conduct construction work near an elevated carbon steel pipeline. Engineers were concerned that dredging on the southern part and reclamation on the northern part of the pipeline’s trestle could cause differential settlement to potentially damage the elevated pipeline structure. As a result, the pipeline, crucial for the site’s cooling system, needed a real-time monitoring solution.

HMA Geotechnical developed a real time and early-warning alert system that would send notification if there was an indication of imminent and catastrophic ground movement that could damage the pipeline. In total, six SAAVs were installed adjacent to the pipeline trestle with a 5 m offset from the trestle column. These SAAVs were installed vertically in 30 m boreholes. The submerged SAAVs measured the lateral displacement of the subsoil in real-time.

SAAV monitoring data were continuously collected with a Campbell Scientific CR1000X datalogger stored in a Data Acquisition System (DAS). With cellular modems equipped in the DAS, the lateral displacement data from the SAAV data was sent out to a secure server, then to Vista Data Vision‘s (VDV) real-time visualization software platform. VDV’s Real Time Display (RTD) was used to give stakeholders a clear overview of all data including displacement graphs and historical overview. The telemetry network allowed two-way communication, so that data could be gathered remotely and the data loggers and sensors in the field could be reprogrammed or reconfigured from the office.

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How did engineers use the observational method during the construction of a new highway interchange?
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How did engineers use the observational method during the construction of a new highway interchange?

Download the Provincial Trunk Highway interchange Settlement Analysis datasheet.

  • 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

    ShapeArray

    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

    ShapeWrap

    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

    ShapeMRI

    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