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Mine Water and the Environment

, Volume 37, Issue 3, pp 470–481 | Cite as

Long-Term Time-Series Analysis to Understand Groundwater Flow in Abandoned Subsurface Mines with Application to a Coalfield in Liège, Belgium

  • B. Ronchi
  • F. Stassen
  • J.-P. Drevet
  • C. C. Frippiat
  • J.-L. Berger
  • C. Dingelstadt
  • M. Veschkens
Technical Article

Abstract

Complex underground flow processes can occur in flooded mine workings. As the groundwater rebounds, outbreaks, flooding, and slope stability problems can occur where hydraulic pressures build up in less drained areas. A time-series statistical analysis was conducted to understand how exploited areas in an abandoned coalfield were connected and to calculate groundwater response times to rain events by spatially and temporally correlating piezometric levels and discharge rates. Ten years of flow rate and water level data were statistically analyzed for an abandoned coalfield in Liège (Belgium). Then, the results were compared to results from physically-based simulations (a 3D groundwater flow model) based on data from the first 2 years of monitoring. The statistical approach gives qualitative indications on the interconnections between the different areas of the coalfield, as well as on the storage capacity/transmissivity of the aquifer. Improved understanding of this hydrogeological behavior can be used to prevent post-mining accidents and assess the associated risks.

Keywords

Post-mining monitoring Quickflow Baseflow Correlation 

长期时间序列分析比利时列日(Liège)废弃煤矿地下水流

抽象

废弃矿井采空工作面淹井地下水流复杂。当地下水位反弹时,排水不畅区块水压增压,可能引发突水、溢流和斜坡稳定等问题。采用时间序列统计法分析废弃矿井采空工作面水流如何串通,分析含水层水位与排水量时空相关性,计算地下水流的降水响应。分析了比利时列日(Liège)废弃煤矿十年矿井水流量和水位。然后,将计算结果与基于前两年监测数据的物理模拟(三维地下水流模型)结果对比。时间序列分析法能够定量计算淹井区块间水力联系和含水层储水系数/导水系数。研究有助于预防煤矿采后事故和评价相应风险。

Analyse langer Zeitreihen zum Verständnis der Grundwasserströmung in stillgelegten Untertagebergwerken und ihre Anwendung auf ein Kohlefeld in Liège, Belgien

Zusammenfassung

In gefluteten Bergwerken können komplexe Strömungsprozesse auftreten. Mit dem Grundwasseranstieg können Wassereinbrüche, Überschwem-mungen und Stabilitätsprobleme auftreten, wenn in schlecht entwässer-baren Bereichen der hydraulische Druck steigt. Eine statistische Zeitreihen¬analyse wurde durchgeführt, um zu verstehen, wie ausgekohlte Bereiche in einem stillgelegten Kohlebergwerk verbunden sind, und um die Verweilzeit zu berechnen. In einem stillgelegten Kohlebergwerk in Liège, Belgien wurden Daten des Durchflusses und des Wasserstandes für einen Zeitraum von 10 Jahren statistisch analysiert. Die Ergebnisse der statistischen Analyse wurden mit Ergebnissen eines 3D-Grundwasserströmungsmodells verglichen, das auf den Befunden eines zweijährigen Monitorings aufbaut. Der statistische Ansatz gibt qualitative Hinweise auf Verbindungen zwischen den verschiedenen Bereichen des Kohelfeldes sowie auf die Speicherkapazität und Transmissivität des Grundwasserleiters. Ein verbessertes Verständnis des hydrogeologischen Verhaltens kann genutzt werden, um nachbergbauliche Störungsfälle zu verhindern und damit verbundene Risiken abzuschätzen.

Análisis con series de tiempos largos para comprender el flujo de aguas subterráneas en minas subterráneas abandonadas con aplicación a un área carbonífera en Liège, Bélgica

Resumen

En los trabajos en minas inundadas pueden ocurrir complejos procesos de flujo de aguas subterráneas. A medida que el agua subterránea se recupera, los brotes de agua, las inundaciones y los problemas de estabilidad de taludes pueden ocurrir cuando las presiones hidráulicas se acumulan en las áreas menos drenadas. Se realizó un análisis estadístico de series de tiempo para comprender cómo se conectaban las áreas explotadas en un yacimiento de carbón abandonado y para calcular los tiempos de respuesta de las aguas subterráneas a los eventos de lluvia correlacionando espacial y temporalmente los niveles piezométricos y las tasas de descarga. Se analizaron estadísticamente diez años de datos de caudal y nivel de agua para un yacimiento de carbón abandonado en Liège (Bélgica). Luego, los resultados se compararon con los resultados de las simulaciones (un modelo de flujo de agua subterránea en 3D) en base a los datos de los primeros dos años de monitoreo. El enfoque estadístico proporciona indicaciones cualitativas sobre las interconexiones entre las diferentes áreas del yacimiento de carbón, así como sobre la capacidad de almacenamiento / transmisividad del acuífero. Una mejor comprensión del comportamiento hidrogeológico puede utilizarse para prevenir accidentes que pueden ocurrir luego del trabajo minero y evaluar los riesgos asociados.

Notes

Acknowledgements

This study was funded by Service Public de Wallonie (SPW/DGO3/DRIGM) as a recurrent annual research contract (Subvention ISSeP “Après-mine”). We thank the reviewers for their constructive suggestions.

Supplementary material

10230_2018_528_MOESM1_ESM.xlsx (10 kb)
Table S1: Characteristics of the piezometers. The average groundwater (GW) level is calculated over the whole data series (MASL: meters above sea level; MBGS: meters below ground surface) (XLSX 10 KB)
10230_2018_528_MOESM2_ESM.eps (55 kb)
Figure S1: Absolute variations around centered groundwater levels in piezometers (EPS 55 KB)

References

  1. ahu P, López DL, Stoertz MW (2009) Using time series analysis of coal mine hydrographs to estimate mine storage, retention time, and mine-pool interconnection. Mine Water Environ 28:194–205CrossRefGoogle Scholar
  2. Bailly-Comte V, Jourde H, Roesch A, Pistre S, Batiot-Guilhe C (2008) Time series analyses for karst/river interactions assessment: case of the Coulazou river (southern France). J Hydrol 349:98–114CrossRefGoogle Scholar
  3. Brouyère S, Orban P, Wildemeersch S, Couturier J, Gardin N, Dassargues A (2009) The hybrid finite element mixing cell method: a new flexible method for modelling mine ground water problems. Mine Water Environ 28:102–114CrossRefGoogle Scholar
  4. Burbey TJ, Younos T, Anderson ET (2000) Hydrologic analysis of discharge sustainability from an abandoned underground coal mine. J Am Water Resour As 36:1161–1172CrossRefGoogle Scholar
  5. Cowpertwait PSP, Metcalfe AV (2009) Introductory Time Series with R, Use R! Springer, New York City.  https://doi.org/10.1007/978-0-387-88698-5
  6. Dingelstadt C, Drevet J-P, Veschkens M, Flamion B (2007) Etude des conséquences de l’après-mine en particulier sur la gestion des eaux souterraines et des risques—Mission 2006. Insitut Scientifique du Service Public, Liège (unpubl; in French) Google Scholar
  7. Gardin N, Brouyère S, Dassargues A (2005) Modélisation de la remontée des niveaux piézométriques dans les massifs affectés des travaux miniers dans l’ancien bassin charbonnier liégeois—site pilote de Cheratte. Université de Liège, Liège (unpubl; in French) Google Scholar
  8. Kovačič G (2010) Hydrogeological study of the Malenščica karst spring (SW Slovenia) by means of a time series analysis. Acta Carsologica 39:201–215Google Scholar
  9. Lafare AEA, Peach DW, Hughes AG (2015) Use of seasonal trend decomposition to understand groundwater behaviour in the Permo-Triassic sandstone aquifer, Eden Valley, UK. Hydrogeol J 24(1):141–158CrossRefGoogle Scholar
  10. Larocque M, Mangin A, Razack M, Banton O (1998) Contribution of correlation and spectral analyses to the regional study of a large karst aquifer (Charente, France). J Hydrol 205:217–231CrossRefGoogle Scholar
  11. Mayaud C, Wagner T, Benischke R, Birk S (2014) Single event time series analysis in a binary karst catchment evaluated using a groundwater model (Lurbach system, Austria). J Hydrol 511:628–639CrossRefGoogle Scholar
  12. Mayes WM, Jarvis AP (2012) Prioritisation of abandoned non-coal mine impacts on the environment. XIII. Hazards and risk management at abandoned non-coal mine sites. Environment Agency Science report SC030136/R2, BristolGoogle Scholar
  13. Padilla A, Pulido-Bosch A (1995) Study of hydrographs of karstic aquifers by means of correlation and cross-spectral analysis. J Hydrol 168:73–89CrossRefGoogle Scholar
  14. Panagopoulos G, Lambrakis N (2006) The contribution of time series analysis to the study of the hydrodynamic characteristics of the karst systems: Application on two typical karst aquifers of Greece (Trifilia, Almyros Crete). J Hydrol 329:368–376CrossRefGoogle Scholar
  15. Ronchi B, Frippiat C, Drevet J-P, Veschkens M, Pacyna D (2016) Assessing post-mining risks in the long term: ten years of hydrological monitoring in Liège (Belgium). In: Drebenstedt C, Paul M (eds) Proc, IMWA 2016—mining meets water—conflicts and solutions, Freiberg, pp 736–739Google Scholar
  16. Ruthy I, Dassargues A (2008) Carte hydrogéologique de Dalhem—Herve 42/3–4, 1/25.000: Notice explicative. Service Public de Wallonie DGARNE, Namur, Belgique (French) Google Scholar
  17. Veschkens M, Unland W, Kories H (2005) Development tools for managing the impacts on surface due to changing hydrological regimes surrounding closed underground coal mines. In: Proc. Post-mining 2005, Nancy, FranceGoogle Scholar
  18. Veschkens M, Drevet J-P, Dingelstadt C (2014) Remontées des nappes dans les anciens travaux miniers et activités de démergement—mesures et surveillance. In: Dassargues A, Walraevens K (eds) Aquifères et Eaux Souterraines en Belgique, GhentGoogle Scholar
  19. Wildemeersch S, Brouyère S, Orban P, Couturier J, Dingelstadt C, Veschkens M, Dassargues A (2010) Application of the hybrid finite element mixing cell method to an abandoned coalfield in Belgium. J Hydrol 392:188–200CrossRefGoogle Scholar
  20. Wolkersdorfer C (2008) Water management at abandoned flooded underground mines: fundamentals, tracer tests, modelling, water treatment. SpringerGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.ISSeP, Institut Scientifique du Service Public, Cellule Risque Sous-solLiègeBelgium

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