دراسة تأثير تذبذب مناسيب المياه الجوفية على الخواص الهندسية لتربة أسس المنشآت الهندسية لدور الضباط التابعة لمدينة الحلة في محافظة بابل

الملخص EN

This study have been done on the region (Dur Althubat\ Babil district\ Hilla) which suffering from many engineering problems like cracks & fractures in the building's walls &floor and others.

The study was performed on that region by digging (6) bore holes of (5 m) depth which represent the whole studying region to observe the effects of the fluctuation of ground water levels on properties and bearing capacity of the soil, hence, its effects on the building foundations.

Soil samples have been taken from each bore including (disturbed , undisturbed ,standard penetration test) which carried out engineering tests including: (permeability test , unconfined & triaxial compressive strength test , direct shear test , consolidation test and bearing capacity).then , the samples have been submerged for (30 days), and retested again.

From the calculations of bearing capacity before and after submerge of the samples that have been taken from the studying region in ground water, it was notified that the ultimate and allowable bearing capacity decreased by (31.58 %) at (1m) depth , by (34.86 %) at (2m) depth and by (32.20 %) at (3m) depth, with the decreasing in the unconfined compressive strength.