Application of Equivalent Numerical Relational Degree for Groundwater Environmental Quality Evaluation in Coal Mine

摘要

A general methodology for equivalent numerical relational degree evaluation is developed and illustrated with a case study of groundwater status assessment for Sang Shuping coal mine. The results of the assessment are in concordance with other evaluation methods. Compared with the other evaluation method, this model is perfect, the evaluating result is more reasonable and its resolving power is higher. Thus, a simple and effective method is provided for groundwater quality evaluation.