FAQs

Five segments fit in a carton roughly 64 x 64 x 64 cm weighing under 2.13 kg. You can ship it overnight, carry it in a car trunk, or strap it to an ATV. Same logistics as the Vertical GeoFlex.

Same options as the Vertical GeoFlex: Campbell Scientific (CR6 or CR1000Xe can log two strings directly; CR350 can log two strings) and DGSI GTecLink wireless data loggers (GeoFlex Node supports up to 50 nodes with external power, or 10 nodes on internal power).

Yes. DGSI offers placement rods (sensorless dummy segments) that install at the end of the string, so you only instrument the specific zone of interest rather than the full casing length. This is the horizontal equivalent of the sensorless nodes offered for the top of the Vertical GeoFlex string.

Either 70 mm or 85 mm diameter inclinometer casing. The casing is installed horizontally through the zone of interest. The system spans that zone, so when the ground moves, the casing moves with it and changes the inclination of the nodes inside.

Up to 200 nodes in 85 mm casing, or up to 50 nodes in 70 mm casing — same as the Vertical GeoFlex.

It’s suited for monitoring ground movement beneath or adjacent to structures where vertical settlement is the concern. Typical applications include:

• Embankment settlement in roadways, levees, and retaining walls
• Monitoring beneath large diameter storage tanks
• Ground movement from tunnel construction
• Landslide early warning above dams, highways, and railroads

The Vertical GeoFlex is better suited where lateral displacement in a borehole is the measurement goal (deep excavations, retaining wall deformation, etc.).

The Horizontal GeoFlex uses the same MEMS sensor nodes as the Vertical GeoFlex but is installed in horizontal casing rather than a vertical borehole. Instead of measuring lateral movement in a borehole, it measures settlement and heave along a horizontal plane. Nodes are still spaced at 50 cm or 2 ft and cumulative deflections produce a profile of the casing. Changes in that profile indicate settlement or upward movement (heave).

Sensly is a cloud-based data management and visualization platform designed for geotechnical, structural, and environmental monitoring. It provides real-time data, automatic alerts, and customizable dashboards, all hosted on a secure cloud infrastructure, accessible through a web browser.

It covers a wide range: dams, bridges, tunnels, railways, pipelines, mines, metro systems, large buildings, power stations, and structures affected by construction. If you’re collecting sensor data and need to monitor it, Sensly is designed for that.

Most data comes in automatically through site dataloggers that transmit to the platform. You can also enter data manually through any web browser if needed.

Data is essentially available in real time. Once data is received, Sensly processes it and publishes results immediately. Calibrated results are displayed on-the-fly, so what you see is always current.

Sensly automatically scans incoming data and sends email or SMS notifications when alarm conditions are triggered. Each sensor includes 4 SMS alerts per month. Additional SMS alerts are available in blocks of 100, invoiced retroactively.