COMPARATIVE ANALYSIS OF DETERMINING HYDROGEOLOGICAL PARAMETERS BY BETWEEN MULTIPLE WELL AND SINGLE WELL PUMPING TESTIN SMALL AREA

Determining Hydrogeological Parameters in small Karst area is a difficult problem.Originally,choosing the observation well and the pumping well qualitatively were used to determine Hydrogeological Parameters by the data of pumping test of single wells,which would result in the high error.The article establishes a fuzzy decision pattern of multilayer and multi-objective system,and chooses the optimal observation well in the pumping test of disturbed wells and the optimal pumping well in the pumping test of single wells by this system quantitatively.Also using multiple well generalized method,the article determined hydrogeological parameters based on the data of pumping test of disturbed wells,and makes up comparative analysis with the results which is got by the pumping test of single wells.It is found that perfect effects are attached.