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Management of Retardation of Salt Water Intrusion in Coastal Aquifers
The free surface in rectangular earth sections or cores of earth dams were determined by the finite element method using a new technique of horizontally displaced mesh. Ten cases were solved and compared with a previously developed and simpler method in which the hydraulic forces were analyzed and which resulted in closed form mathematical solutions. The comparison indicated that the method of hydraulic forces can satisfactorily be used in artesian aquifers to locate the saline water-freshwater interface which is analogous to the free surface in earth dams. The solved cases correspond to a wide range of coverage of practical conditions. The effects of recharge wells under the transient flow conditions were then superimposed on these due to the natural flow in order to determine the degree of salt water retardation. Single wells as well as battery of recharge wells parallel to the coast line were analyzed. In all cases, dimensionless parameters were used to allow for the changes in the pump capacities and the time intervals. Various well locations were examined and in the case of well batteries various spacings were introduced.
Management of Retardation of Salt Water Intrusion in Coastal Aquifers
The free surface in rectangular earth sections or cores of earth dams were determined by the finite element method using a new technique of horizontally displaced mesh. Ten cases were solved and compared with a previously developed and simpler method in which the hydraulic forces were analyzed and which resulted in closed form mathematical solutions. The comparison indicated that the method of hydraulic forces can satisfactorily be used in artesian aquifers to locate the saline water-freshwater interface which is analogous to the free surface in earth dams. The solved cases correspond to a wide range of coverage of practical conditions. The effects of recharge wells under the transient flow conditions were then superimposed on these due to the natural flow in order to determine the degree of salt water retardation. Single wells as well as battery of recharge wells parallel to the coast line were analyzed. In all cases, dimensionless parameters were used to allow for the changes in the pump capacities and the time intervals. Various well locations were examined and in the case of well batteries various spacings were introduced.
Management of Retardation of Salt Water Intrusion in Coastal Aquifers
A. I. Kashef (author)
1975
295 pages
Report
No indication
English
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