Abstract

A geographic information system is an integrated collection of computer applications and materials that it is employed to assess geographic relationships, model spatial processes, and analyze and arrange geographic data. The gathering, organizing, and analysis of geographic data are made easier with the use of a geographic information system (GIS). Information systems pertaining to geography Thus, it is employed in the gathering, examination, assessment, updating, and presentation of geographic data. This study dealt with Al-Khalis District, one of the five districts of Diyala Governorate. Al-Khalis District is in the western part of Diyala Governorate and the northern part of the capital, Baghdad, about 55 km north of the capital, Baghdad. 227 boreholes were collected for the entire governorate. The soil was classified, its properties were taken, and they were collected in an Excel sheet. After that, this data was entered into geographic information systems to produce clay shear strength maps. A very helpful soil map that can be used in all aspects through structural and engineering simulation is produced when GIS is used in conjunction with physical and strong geotechnical qualities. Building engineering facilities, roadways, and industrial structures may be made easier with the use of a GIS map. Additionally, it offers a strong tool for extrapolating developed regions. GIS soil maps are anticipated to positively influence the next geotechnical work. The results revealed a significant variance in shear resistance across the depths of the Khalis area, with the soil's strength ranging from weak to medium in the first layer and increasing downward with depth. So, we recommend not going for more than three multi-story buildings unless doing site investigation on the site and making sure it is suitable for that or using a pile foundation. This study aims to give geotechnical engineers and designers a first impression of the type of soil and help them quickly make decisions in terms of the type of foundations and the number of floors for multi-story buildings

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