Estimation of riverbed clogging layer filtration characterstics based on aquifer pumping test results

Abstract

Design of drainage wells is one of the most commonly used methods for groundwater level decrease, where number of wells and their capacity has to be calculated. These parameters depend on aquifer filtration properties, river water level and distance between wells and the river. The effect of the river proximity is reflected in groundwater level increase that may require more wells or bigger well’s capacity. Groundwater level reduction is calculated by using the mirror method. Aquifer and riverbed clogging layer filtration characteristic have to be determined when using mirror method. Modification of the mirror method where riverbed clogging layer filtration characteristics are included and methodology for riverbed clogging layer filtration characteristics estimation are presented.