التعرية الأخذودية على جوانب معابر الجسور للخط السريع مابين بابل و الديوانية باستخدام تقنية (GIS)‎

الملخص EN

Located study area in the central part and the southern part of Iraq that is, they include Highway passing from Babylon to Diwaniyah The bridges PRESIDENT (24) bridge and secondary (6) bridges, and took up the study of erosion being the stage of water erosion as it affects the bridges Alfoghanih, show this erosion in the upper, middle and bottom of Ktov bridges and stand with the emergence of the caves that develop the evolution of gullies, reaching degrees of slope Ketov between (3,8 º) in hand Shomali, and (12,7 º) in the area of the Nile and between that there is a degree of decline is simple, light and moderate.

The total depth of the groove between (5-40 cm), while the total length of groove (1-20 m), and affected the quality of the soil in the water filtration process, because the lack of organic matter and increasing salinity effect on the runoff and less water permeability inward.

And applied equation Forné and a weak result was to measure the intensity of rainfall erosion in the study area, as well as this method has been used to measure the volumetric density of canyons and determine the degree of erosion and found that erosion is located in class (2-3-4) like (young, 1975) as ranging from (0.2-1, 16) and that they fall within the scope of erosion (light, medium and heavy).