نقش چاههای مشاهده ای و پیزومتریک در تحلیل مخاطرات ناشی از بهره برداری آبهای زیرزمینی در شهر مشهد

The management of groundwater resources has increasingly become an important task in hydraulic and environmental engineering. Uncertainties resulting from an incorrect measurement in the aquifer that is done to get fitting parameters for whichever model carry imperfection to the model itself. Piezometers are often used in hydrologic studies for measuring pore water pressures and, therefore, hydraulic heads. Here, we consider the errors associated with the use of observation wells instead of the simple piezometers in soils for hydrologic studies. The performance of these two typical instruments was assessed. This paper is showed that for some observation wells design/soil-type combinations, observation wells can be in considerable error. Greatest errors were found where the less efficient of the observation wells designs was in a poorly permeable deposit overlain by a permeable layer. If undetected, these errors could lead hydrologic researchers and/or consultants to make erroneous conclusions about both patterns and rates of ground-water flow in soils.

کلید واژه ها: خراسان رضوى