The influences of coal mining on the large karst springs in North China
| Autor: | Qiang Wu, Li Ting Xing, Chun He Ye, Yuan Zhang Liu |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Global and Planetary Change
geography Hydrogeology geography.geographical_feature_category business.industry Coal mining Soil Science Geology Fault (geology) Karst Pollution Mining engineering Environmental engineering science Spring (hydrology) Environmental Chemistry Drainage business Groundwater Earth-Surface Processes Water Science and Technology |
| Zdroj: | Environmental Earth Sciences. 64:1513-1523 |
| ISSN: | 1866-6299 1866-6280 |
| DOI: | 10.1007/s12665-009-0376-y |
| Popis: | Environmental damage, to a greater or lesser degree, is caused by coal mining. On the basis of analyzing the hydrogeological conditions of the mining areas, this paper provides a sum-up of the characteristics of water disasters in North China-type Coalfield. Researching into the Baimai Spring group, this paper explores the relation between karst water and groundwater of coal-measure strata, using the methods of pumping test, dynamic observation, and tracer test. After working over the impact of mine water-inrush on spring dynamics, this paper estimates the contributory level of karst water to mining drainage. This paper holds that the mine water-inrush mainly results from karst water, with the fault structures acting as channels; the keys of mine water-inrush are faulty density, intersection and endpoint fault. Finally, this paper suggests that mining below Mine-9 be forbidden, and that below Mine-7 be properly mined, which provides the scientific basis for preserving springs and preventing water disasters in the mining areas. |
| Databáze: | OpenAIRE |
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