Authors : Amer Atiya Al-Khalidi and Ahmed Qasem Mahmood
Abstract: This research is included studying the physical, chemical and engineering features for the soil in the research area through digging three wells of 20 m depth and taking samples for testing. The study aims to make a geotechnical evaluation and calculating the bearing capacity of the soil in the research area. Depending on the results of the analyzation and using the Unified Soil Classification System (USCS), its clear that the soil is coarse granules one and sandy, the percentage of sand is about 52-77%, the clay is between 2-45%, silt 17-28%, Liquid Limit (LL) is 24-39%, Plasticity Index (PI) is 13-21%, water content is 6.5-26.7%, permeability is 6.22±10-3 to 1.37±10-6 cm\sec, bearing capacity by dynamic method is 6.9-41.15 T/m2 and by static method is 10.68 T/m2 of 1 m depth and is 16.30 Tm2 of 4 m depth. The soil cohesive values are equal 0-0 T/m2, values of internal friction angles are 16-41°. A chemical analyzation for the soil and ground water in the research area is made. Results show that ground water has weak basicity and the percentage of salts is high, the water has Sulfate content (SO3) which is about 1225-1218 ppm. The results of the chemical tests of the soil also show that sulfate content is about 4.55-9.11% for different depth, the percentage of the organic matter of the soil is (1.58-0.26%), total soluble salttest is 31.13-16.45% and the gypsum content is 9.77-19.58%.
Amer Atiya Al-Khalidi and Ahmed Qasem Mahmood, 2019. An Engineering Study of a Soil for Residential Project in Karbala Province. Journal of Engineering and Applied Sciences, 14: 10156-10161.