| المؤلف | ABSTRACT
The map area is located in the northwesternpart of Iraq, near the Iraqi-Syrianborder.The map areaisgenerally characterizedby flat terrain dissected bynumerous valleys in addition to main outstanding feature of SinjarMountain, which includesJabalGoulat and JabalJeribe.This report describes a study that was carried out to perform Land Use-Land CoverMap (LULCM) of Sinjar Quadrangles Sheet No. NJ-37-16, at scaleof 1:250 000 by implemented two methods:(1) indices and supervised classification using Landsat 8 OLI satellite image 23/09/2015 and (2) classification procedure; that was developed by USGS and modified by Remote Sensing Division team of GEOSURV-IRAQ.
The LULCM of the map area has produced depending on the classification of each pixel of Landsat 8 OLI image to be assigned to one of the six main LULC classes, in addition to image indices. Some classes were modified and interpolated after supervised classification using GIS software, because of the interference between these classes in some places on the map area, or as a result of occurrence of scattered pixels for any of these classes with other classes.
LULCMwasproducedaccording tothe maximum Likelihood classifications (ML) of Landsat 8 OLI images and the indices using ENVI V. 5.1 and ERDAS imaging V. 2014. These images classified intofiveclasses.The LULC raster image is converted to vector structure, using ArcGIS V.10 program in order toproduce a digital LULCM.
Fivetypes of LULChaverecognized in the map area, these are:Urban and built up area Class, vegetated landclass,agricultural- non vegetatedlandagricultural- non vegetated land,which is further subdivided into:cultivated land and harvested subclass.Barrenland class,which is further subdivided into:bare exposed rocks,which subdivided to sedimentary rocks (carbonate and other clasitcsrocks), mixed barren land, bare soil and gypcrete.. Finally, Burned Land class was recognized in the map area. | |
| المؤلف | DABBY, A.T.&SAADOON I.Q. | |
| تاريخ الانضمام | 2020-12-22T08:14:28Z | |
| تاريخ الانضمام | 2021-01-19T15:40:32Z | |
| تاريخ الإتاحة | 2020-12-22T08:14:28Z | |
| تاريخ الإتاحة | 2021-01-19T15:40:32Z | |
| تاريخ النشر | 2017 | |
| معرّف المصادر الموحد | http://www.iiir-mim.gov.iq/xmlui/handle/123456789/33369 | |
| dc.description | "SOIL
" | ar |
| الملخص | The simplest definition of the swelling phenomena is the increasing in volume of the soil on wetting by the water or moisture that means the heaving in the soil which is occurring in such a conditions they are; texture of the soil, hydrology and mineralogy.
The experimental testing of volume change for the seven selected samples reveals that the volume change (swelling) had been taken place in all of them in different values due to different reasons, where the samples A1 and A4 have the same value which is (20 ml.) and the samples A2 and A7 have (15 ml.) both of them and that is due to presence of clay and silt fractions, relatively, in a high percentages respected with the sand fractions in the samples A1 and A2, while in the samples A4 and A7 the volume change is may due to presence of very fine materials (tenderness of substances) of sand, fine silt with clay fractions.
The samples A5 and A6 have the minor value of the volume change reaches to (5 ml.) in both of them and that is due to presence of sand fractions in a very high percentage reaches to (93%) and (92%) respectively, with a little percent of clay and silt fractions.
The results of volume change reveal that the swelling is taking place when their conditions have been gotten, whether presence of clay fractions or presence of very fine sand and silt fractions (tenderness of substances), or colloidal materials, where the latter is one of the conditions of occurrence of the swelling phenomena.
Most of the (34) samples are considered to be (Inactive class) according to Skemtonʼs classification, and the degree of the expansiveness of them are as follows; (10) of them are non- expansiveness, including the (4) non-plastic, (19) of them are medium expansiveness and (5) are high expansiveness, and that refers to the soils are considered to be, primarily, stable or slightly in volume change. | |
| سلاسل | 3633; | |
| موضوع | ENG.GEOL | ar |
| العنوان | SWELLINGPHENOMENS IN SOILS AND ITs ,EFFECTS ON THEIR PHYSICAL AND ENGINEERING PROPERTIES | ar |
