STAMS : New tools for monitoring flooded and nonflooded mine shaft

Abstract : In European coalmines, there are many unequipped, abandoned shafts (in Poland, Germany, France, Spain, UK and other countries) in which the long term stability is a cause of concern. The need for continuous assessment and monitoring of the stability of abandoned shafts present a real challenge particularly for deep shafts. The European STAMS research project (Long term STability Assessment and Monitoring of flooded Shafts), subsidized by the Research Fund for Coal and Steel programme (RFCS), is addressing this issue. The objective of the STAMS project is to implement Periodic Inspection Modules, and to design permanently installed monitoring systems, to achieve periodic and long term continuous monitoring and condition assessment of flooded mine shafts. The project proposes solutions to monitor and to assess the stability and the conditions of flooded shafts, including the non flooded portions of partially flooded shafts, for long periods of time. The Multi functional Monitoring Module is able to make periodic measurements in order to assess the stability of a flooded shaft. The Ultrasonic Inspection Module allows the detection of lining deformations with high precision between periodic inspections of shafts. In addition to monitoring, a modelling approach has been developed to assess the long term stability of shafts during and after flooding by coupling the hydro mechanical behaviour with the chemical reactions which occur between the mine water and the shaft lining components. A database of the flooded shafts has been established. Laboratory and trials tests are carried out by the partners of the project to check the tools and to test them under real conditions. This paper presents and describes the developed modules and the first obtained results.
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Marwan Al Heib, O. Alvarez, M. Bedford, F.M. Fernandez, A. Jardon, et al.. STAMS : New tools for monitoring flooded and nonflooded mine shaft. 12. International conference on mine closure (Mine CLosure 2018), Sep 2018, Leipzig, Germany. pp.483-496. ⟨ineris-01960311⟩

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