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TD-DAQ: A low-cost data acquisition system monitoring the unsaturated pore pressure regime in tailings dams.
Basson, Jack Adriaan; Broekman, André; Jacobsz, Schalk Willem.
Afiliación
  • Basson JA; Department of Civil Engineering, University of Pretoria, Pretoria, South Africa.
  • Broekman A; Department of Civil Engineering, University of Pretoria, Pretoria, South Africa.
  • Jacobsz SW; Department of Civil Engineering, University of Pretoria, Pretoria, South Africa.
HardwareX ; 10: e00221, 2021 Oct.
Article en En | MEDLINE | ID: mdl-35607677
Tailings dams are large, often self-contained, storage facilities of mine residue. On self-contained tailings dams the tailings material itself is used to raise the containment embankments holding newly deposited residue. To develop the necessary strength, it is essential that material must dry out sufficiently. Despite substantial advancements in the field of instrumentation, these parameters are rarely measured on tailings dams and their evolution over time is poorly understood. Understanding the role of pore water suction and water content evolution over time can benefit from the installation of sensors and data acquisition systems (DAQ) capable of continuously monitoring these parameters. Such monitoring remains difficult and expensive owing to the challenges of measuring negative water pressures and the often-remote locations and harsh operating environments typical of mining operations. This paper describes the development, testing and validation of a low-cost DAQ for the measurement of the unsaturated pore pressure regime in a platinum tailings dam located in the Limpopo province of South Africa. The Tailings Dam DAQ (referred to as TD-DAQ) is designed to measure the negative pore pressure, moisture content and temperature in fine-grained material over extended periods of time. These measurements are stored on the DAQ and transmitted in parallel using new wireless network communications technologies (Sigfox) suited to remote, battery powered applications. The successful deployment of the TD-DAQ presents a real-time, low-cost instrumentation solution to improve the efficiency of condition monitoring of tailings storage facilities, contributing to a reduction in the probability of failure events.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Health_economic_evaluation Idioma: En Revista: HardwareX Año: 2021 Tipo del documento: Article País de afiliación: Sudáfrica Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Health_economic_evaluation Idioma: En Revista: HardwareX Año: 2021 Tipo del documento: Article País de afiliación: Sudáfrica Pais de publicación: Reino Unido