Abstract
The Shennan mining area in northern Shanxi Province is located in a semiarid area where surface and near-surface water resources are very valuable. Mining-induced fractures can cause these shallow water resources to leak. The overburden strata were divided into engineering geology rock groups and a comparative analysis was calculated based on the height of the water-conducting fractured zone and the key stratum theory, using both an empirical formula and a fitting formula. The influence of coal mining on the shallow water resources was divided into four types: serious, moderate, slight, and no water loss. Finally, a water resource leakage differentiation graph was produced for the study area. The results can be used to guide coal extraction in the study area and to protect the area’s shallow water resources.
Zusammenfassung
Die Shennan Bergbauregion in der nördlichen Shanxi Provinz liegt in einer semiariden Region, in welcher oberflächliche und oberflächennahe Wasserressourcen sehr wertvoll sind. Bergbaubedingte Brüche können das Auslaufen dieser seichten Wasserressourcen bewirken. Die überlagernden Schichten wurden in ingenieurgeologische Gruppen unterteilt. Auf der Basis der Höhe der wasserleitenden Störungszone und der Schlüsseschichttheorie (key stratum theory) wurde eine vergleichende Analyse gerechnet, unter Nutzung einer empirischen und einer angepassten Formel. Der Einfluß des Kohlenbergbaues auf die seichten Wasserressourcen wurde in vier Typen beschrieben: Ernst, moderat, gering, und kein Wasserverlust. Schließlich wurde für das Studiengebiet ein Differentiationsgraph der Wasserverluste erstellt. Die Resultate können den Kohlenabbau in dem Studiengebiet lenken, um die seichten Wasserressourcen zu schützen.
Resumen
El área minera de Shennan en el norte de la provincial Shanxi está localizada en un área semiárida donde las fuentes de agua superficial y las cercanas a la superficie, son muy valiosas. Las fracturas inducidas por la minería pueden causar que estas fuentes de agua se pierdan. Los estratos sobrecargados fueron divididos en grupos de rocas geológicas y se calculó un análisis comparativo basado en la altura de la zona de fractura conductora de agua y la teoría de estrato clave, usando una fórmula empírica y una fórmula de ajuste La influencia de la minería de carbón sobre las fuentes de agua superficial fue dividida en cuatro tipos: seria, moderada, ligera y sin pérdida de agua. Finalmente, se realizó un gráfico de diferenciación de la pérdida de la fuente de agua para el área de estudio. Los resultados pueden ser usados como una guía para la extracción de carbón en el área de estudio y para proteger los recursos de agua del área.
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Acknowledgments
Financial support for this work was provided by the State 973 Project (Grant 2015CB251601), the Fundamental Research Funds of the State Key Program of National Natural Science of China (Grant 41430643), the Fundamental Research Funds for the Central Universities (2015QNB23), and the Priority Academic Program Development of Jiangsu Higher Education Institutions. The authors also thank the anonymous reviewers for their helpful comments.
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Qiao, W., Li, W., Li, T. et al. Effects of Coal Mining on Shallow Water Resources in Semiarid Regions: A Case Study in the Shennan Mining Area, Shaanxi, China. Mine Water Environ 36, 104–113 (2017). https://doi.org/10.1007/s10230-016-0414-4
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DOI: https://doi.org/10.1007/s10230-016-0414-4