الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
By modeling soils as spatially random media, the soils’ properties of primary interest
are its hydraulic conductivity K or transimssivity T. Prediction of dewatering and upconing
is then obtained using the finite difference method. In this study probabilistic measures of
upconing due to dewatering using a three-dimensional model combined with Monte Carlo
simulations are presented
The effect of variability on transsmissivity ,T, or hydraulic conductivity, K, on the
piezometric head and upcoming ,respectively, is considerable. Usually designers use
deterministic models to get piezometric head and upconing values, although there are many
values of transmissivity and/or hydraulic conductivity. The developed model based on the
present study assistants the designers to decrease the pumping cost.
The developed model calculates upconing and piezometric head by using program
language MATLAB. It was found that to be an intelligent designed, simple, powerful, and
useful modeling package. The particular advantages that the finite difference method offers
are desirable in many cases.
Design charts were developed to calculate dewatering systems and corresponding
upconing. charts of modification factor change with the Coefficient of Variation ,C.O.V,
number of wells and discharge. The developed design aids to get safe penetration length
of the pumping well and upconing of salt water