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Home » Case Studies » Val De La Mare Dam

Val De La Mare Dam

Published on March 2 2017
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Image Val De La Mare Dam

Jersey Water decided to fit out 3 old unused drainage holes with 6 sensors (2 sensors per borehole) able to measure the movements of the Val De La Mare Dam. The ASR (alkali-silica reaction) phenomenon, reservoir level variations, temperature’s influence, and uplift can be some forces and causes of the movements. Fiber optic technology has been considered the best technical solution for this kind of application.

Aim of monitoring:

Measuring vertical and oblique movements of the body of the Val De La Mare Dam in three different sections and blocks using fiber optic deformation sensors from Smartec, called SOFO.

Main results:

The installation is too recent to have a meaningful understanding of the data at present. Both old and new monitoring systems will be used side-by-side for one year until sufficient data has been accumulated from the Smartec system to allow the client to conclude the dam’s performance from the new data.

INSTALLATION PERIOD TYPE OF SENSORS NUMBER OF SENSORS
2013 SOFO 6
Image

Downstream face of the dam

Image

SOFO sensor anchorage on the crest

For more information, contact us and read more case studies from Dam and Dike applications from Smartec and Roctest. 

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Dam and Dike

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Developer and Manufacturer of Geotechnical & Structural Instruments and Soil/Rock Testing Equipment

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Provider of innovative Fiber Optic Solutions for Structural Health Monitoring and Geotechnical Instrumentation

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Provider of Geotechnical & Structural Instruments
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Provider of Hydrogeological & Geotechnical Services. Investigations, Monitoring & Testing

Logo Roctest

Developer and Manufacturer of Geotechnical & Structural Instruments and Soil/Rock Testing Equipment

Logo Smartec

Provider of innovative Fiber Optic Solutions for Structural Health Monitoring and Geotechnical Instrumentation

Logo Telemac

Provider of Geotechnical & Structural Instruments
since 1947

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Provider of Hydrogeological & Geotechnical Services. Investigations, Monitoring & Testing

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