The effect of ground water on determining the foundations of a building through soil investigations

The main objective of soil testing is to make sure of that the transported loads exerted by a building which is to be built is below the ultimate strength of the soil. In addition, the partial falling in the soil level caused by building process is still within the accepted limits. In this research, we have studied the properties of soil by making three holes with different depth in order to know the strength of soil to the exerted loads. Having taken all physical and chemical tests using both dynamic and static methods, we got to the conclusion that the suitable foundation is shallow (matt like or continuous).we also suggest to make or construct two layers 25 cm thick each with an at least compaction percentage of 95% for constructing the building mentioned. The man objective of soil investigation is to ensure of that the magnitude of applied loads which transporting by a building through a sots is below the magnitude of ultimate strength of soil, in addition, the differential settlement of the soil caused by constructing a building is still within the accepted limits.