MONITORING

Part of our Data Acquisition, Data Delivery & Analytics Solutions

We can provide the most comprehensive range of supplier-agnostic instrumentation and monitoring solutions, including geotechnical monitoring services. Our expert engineers routinely carry out manual monitoring and install automated monitoring on behalf of a wide range of clients.

Inclinometers

Inclinometers measure lateral movements or deformation in soil, rock or structures. Our team can measure changes in inclinometer casing to build datasets for the deformation history of the installation location, available as raw data and/or graphs after data processing. Examples of use can include unstable slopes (including highway and railway embankments), shafts and tunnels and building foundations.

We can also offer remote monitoring of inclinometers, which reduces carbon emissions and improves safety on site.

A Central Alliance worker dressed in his vis clothing and a blue hard hat, using an inclinometer to complete manual monitoring works on a dry, grassy slope, with hills, trees, overhead power lines and a bright blue sky in the background.
Find Out More About Remote Monitoring

Vibrating Wire Piezometers

Vibrating wire piezometers (VWPs) accurately measure pore water pressures or fully/partially saturated soil and rock. Data can be collected through the use of data loggers for comprehensive, long-term data or using readout units to collect data as needed. Examples of VWP installations can include failing or unstable soil slopes, road cuttings and highway and railway embankments.

We also offer fully remote monitoring installations.

Central Alliance worker dressed in hi-vis personal protective clothing, completing monitoring, to monitor groundwater for a large scale project in a field in Lincolnshire.

Water Monitoring & Sampling

Central Alliance offers a range of water monitoring and sampling solutions. Spot readings of water level in boreholes or surface water, water flow in channels and water quality are available – with a suite of remote monitoring options also deployable.

Water sampling from boreholes and surface water can be undertaken, which enables environmental testing using our UKAS-accredited RSK Group laboratory Envirolab. We are able to test using both in-situ and laboratory means for water quality and contamination.

Extensometer

Extensometers detect vertical changes un magnet levels to measure displacement (settlement, consolidation, heave) in soil and rock, measured using a reed switch. Extensometer monitoring builds a history of vertical change throughout the monitoring period. Examples of extensometer monitoring can include natural and made ground on construction sites and unstable slopes (including highway and railway embankments).

Gas Analysing

Our instrumentation & monitoring team can also provide ground gas monitoring using a portable gas analyser to present a breakdown of the air from within a borehole pipe. Our team has the capability to test for gases, including oxygen, carbon dioxide, methane, carbon monoxide and hydrogen sulphide alongside the pressure, both internally and externally, of the borehole during monitoring and flow rate.

A vibrating wire piezometer
Ground Investigation

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