الخصائص الفيزوكيميائة لبعض ترب السباخ لمناطق مختارة من البصرة و تأثيرها على المنشآت الهندسية

Abstract EN

Study was carried out to know the physio-chemical properties to salinesoil as know (sabkha) and their influence on engineering construction in three location in basrah the first at hai –al-qadissia, second in kubla and the third in khour-al zubair.samples were collected from surface bed.

these samples were subjected to classification and chemical analysis.

Ground water samples were taken also and chemical analysis were done to these samples in both dry and rainy season for the year of 2008 .the level of ground water was determine and reach to(0.6-1.250)m for dry and rainy season respectively.

Results showed that clay soil dominted in the study area by average percent between (50- 72)%for surface bed and ranging between (53-73)for the subsurface bed the average of value of liquid limits range between (47.3-49)% to the surface bed and to(46-48)%to the subsurface bed.

While the average of value plastic limits range between (25.3-25.6)% to surface bed and to (24-24.3)%to sub surface bed .while dry density was valus range between (1.51- 1.69)gm.cm-3 to the surface bed and to (1.62-1.69)gram.

cm-3 to sub-surface bed .water content reach about (23-26)% to the surface bed and to(28-31)%to the sub surface bed .

Chemical analysis result to the study soil samples were showed that the organic matter percent reach about (0.09-1.3)%to the surface bed and to (1.2-1.5)%to the sub surface bed .

While gypsum percentage reach to (1.1-2.4)% to the surface bed and to (1.4-1.8)% to the sub surface bed.carbonte percent reach about(19.1-27.8)% to the surface bed and to (20.2-30)% to the surface bed Ground water samples analysis showed that And cl-1 Na+1were the dominate ions in ground water ions concentration reach about to (270- 325)meq.L-1 and to (304-347) meq.L-1to dry and rainy season receptivity .while cl-1reach to (301-320) meq.L-1and to (317-360) meq.L-1to dry and rainy season receptivity.