remote Geotechnical Monitoring


remote Geotechnical Monitoring


Remote Datum Ltd can assist in instrumentation installation and remote collection of data reliably and (frequently) at a lower cost than manual monitoring. In addition SMS text and email alarm parameters may be set at any time from Remote Datum’s web bureau.

Geotechnical instrumentation plays a big part of pre contract geotechnical investigation.  Long and short term investigation of the geophysical properties of areas prior to construction or mining can give valuable data to a geotechnical engineer from which more accurate and cost effective decisions and solutions can be made. Once operations have started, it is frequently part of the specification or licence that geotechnical reporting continues – even after the contractor has completed the construction

All the data from our sensors and instrumentation can be viewed graphically in the client’s office on the web bureau and the data downloaded as a CSV file for interrogation in a spreadsheet or for archiving.

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Piezometers are used to confirm pore water pressure and/or ground water levels which are then used in calculations to quantify other parameters which influence the performance of soils, rock and foundations.  Piezometers may indicate potentially dangerous conditions that may adversely affect the stability of a structure and its bearing foundations.

They can also provide basic data for improvement of design practices and criteria that will promote safer and economical construction of foundations, retaining walls, earth bunds and batters and reinforced earth walls.  Measured remotely, these instruments give a wealth of important information for decision makers  to view graphically from their office on Remote Datum’s web bureau or by downloading the data for detailed examination on a spreadsheet.

Crack propogation sensors

Crack propogation sensors measure the minute movements of rocks and built structures. These sensors can give an early indication of the movement of rock formations and structures along with an early indication of possible failure.

Remotely monitoring these sensors give engineers the opportunity to spot trends and curves from their desks that otherwise manual measurement and data input would have taken  days to achieve. Multiple and differing sensors can be installed to give a robust picture of a structure or rock formation’s likely failure modes. With SMS and email alarm systems problems can be investigated the instant they become apparent from the sensors.

Tilt sensors

Tilt sensors  (rotation) detects the movement of a structure out of the horizontal or vertical plane, also known as rotation. Tilt sensors are frequently installed with both X and Y axis detection. These remotely monitored sensors can detect tilt (rotation) down to .001 degree thereby ensuring any movement of a rock formation or structure is instantly detected and alarms triggered. An array of remotely monitored tilt and crack sensors may be installed to ensure a good understanding of the movement and deformation of a target structure or formation.

Vertical & horizontal inclinometers

Vertical & horizontal inclinometers are installed in a specially grooved tubing to measure the movement of retaining walls, foundations, slopes and the lateral movement of earthworks. Inclinometers provide quantitative data on magnitude of inclination or tilt of a foundation, embankment or slope and its variations with time. It also provides the pattern of deformation, zones of potential danger and effectiveness of construction control measures undertaken.

Remote Datum’s real-time remote monitoring of inclination with in-place inclinometers helps engineers in the office  observe the behaviour of ground movement before, during and after construction and indicates potentially dangerous conditions that may adversely affect stability of the structure, its foundation and bearing strata. It also provides basic data for design improvement that will promote safer and more economical design and construction.

Single & multi channel strain gauges

Single & multi channel strain gauges for the measurement of stresses in structures and geological formations, monitoring of strain in dams, retaining walls, rock formations and RC concrete structures during and after construction; study of stress distribution in underground cavities and tunnels.
Rebar strain gauges vibrating wire sister bar strain meter is specially designed for embedment in concrete structures. It is ideal for measurement of strain in concrete structures such as piles, diaphragm/slurry walls, bridge abutments, tunnel lining, dams, foundations, etc.

The gauge is supplied ready for embedment in concrete by tying it alongside an existing length of rebar in the rebar cage. The strain transfer from the surrounding concrete to rebar strain meter is uniform and equal. Sister bars can also be installed in pairs on both the sides of neutral axis to separate bending moments from axial load. When installed with Remote Datum’s wireless connectivity gives  structural engineers the opportunity to view all the data graphically, thereby giving visual indications of the loadings each bar is under.

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