Measurand - Model SAAV Extend -Advanced ShapeArray
Connect sensorized segments in the field for a continuous deformation profile. SAAV Extend—our latest innovation addresses the challenges of continual deformation monitoring during the raising of tailings dams. Inspired by direct feedback from clients in the tailings and mine waste sectors, SAAV Extend provides a continual deformation profile throughout multiple dam raises with unparalleled ease of installation and data interpretation.
SAAV Extend is a modular ShapeArray™ system that scales along with your project’s scope. SAAV Extend includes a top assembly that connects to a base assembly that creates a continuous deformation profile of a borehole. When it is time to raise the tailings dam, SAAV Extend Lift Extension segments can be added between the top and base assemblies to increase the total sensorized length. SAAV Extend’s connectors are keyed to ensure azimuth is maintained as Lift Extension segments are added in the field.
SAAV Extend is designed for the field. Our toolless connectors ensure that SAAV Extend produces continuous and reliable, long-term data while submerged in water-logged environments.
SAAV Extend can be installed into existing casings, even those that are too distorted for conventional use, which eliminates the need to drill new boreholes when converting from manual to automated monitoring. SAAV’s patented cyclical installation method means it can be directly inserted into a range of casing sizes and widths, including both standard grooved inclinometer casings and smooth casing types, without assembly in the field. Measurand’s software tracks the medial axis in the centre of the casing in 3D to produce traditional inclinometer plots.
All ShapeArray instruments are manufactured in a high-capacity ISO 9001:2015 certified facility.
ShapeArray that grows with your monitoring strategy
SAAV Extend will always have a sensorized length that is right for your needs. Individual sensor segments are 500 mm each and can be combined up to a total sensorized length of 200 m.
Simple installation in the field
SAAV Extend’s hand-tight threaded connectors allow clients to easily add sections of lift extension segments without additional tools. Adding new lift extension segments is as simple as twisting, while keyed alignment marks on the connectors maintain the ShapeArray’s azimuth.
A connectable ShapeArray design that is just as durable as SAAV
Designed specifically for the rigours of tailings dam safety monitoring, SAAV Extend is submersible up to a depth of 200 m. SAAV Extend has the same 38-year MTTF as any ShapeArray that Measurand manufactures. It also has the same temperature tolerances and tensile strength, so clients can trust SAAV Extend in as wide a range of environments as existing SAAV models.
Real-time measurements in real-world conditions
You cannot guarantee pristine conditions in the field when you need to perform your ShapeArray installation. That’s why SAAV Extend’s connectors have a 300-psi open-face pressure rating. You can connect segments in the rain without worrying about damaging your instruments.
Total control to monitor the zone of interest
Clients can use silent segments, first introduced with SAAV, to target the total sensorized length towards the geologic zone of interest.
Segment Length:
500 mm
Installation:
Vertical