Application of electrical resistivity method in ground water and bearing stratum determination in selected location, Basrah University, Garmat Ali.

Abstract

The vertical resistivity investigation is carried out with Schlumbercher arrangement using on Basrah university site which locate in north of Basrah city at Garmat-Ali town. The survey is achieved by (5) Stations distributed over investigated area (university) that up to (21m) depth where is recorded values of bulk resistivity (R) measured (ohm) with device of measurement of Electrical Resistivity (ABEM Terrameter SAS 300B). The results of the Resistivity values is interpreted owing to the complete matching, also, a computer program named (VES) for creating five of models is applied. The result models show third layer curves in (2, 3, 4, 5) positions, and second layer curve type model (ρ2>ρ1) in (1) position. These plotted models illusraid the electrical specific resistivity is generally values low. The first recorded diagnosed layer represents a depth of water table in university site, while the second diagnosed layer is a depth level of sub stratum (Soft) for the mean cohesive stratum that extend form ground surface, also the stratum of bearing capacity is determined at (21.3m) in (2) station.