Use of GIS in Decision Making for Geotechnical Investigation
Geological Information System (GIS) is a tool which is used in different Areas to subside the human effort. The GIS was earlier developed to maintain the geological data of earth, but during the time GIS is used in different areas for research. The purpose of the study is to utilize GIS technique in the field of geotechnical engineering in different work like preliminary survey, availability of digitize Soil data of location, topographic survey. Due to availability of GIS, data can easily digitize according to the geographical coordinates. The satellite imageries of Nagpur city are collected from Earth Explorer a digital platform for researchers to access the satellite images of any Location. This satellite images are Landsat 7 ETM+, these images are later used to form composite image to develop Landuse Landcover map. Using ArcGIS Bore log data from sixty locations are compiled to form digital data for geotechnical soil properties. This will reduce the effort and time of engineers. From the above research the landuse landcover map is generated showing percentage area covered agriculture (36.3%), forest (8.80%), waterbodies (1.3%), urban (53.6%), For Nagpur the elevation at different location is shown which varies from 280m to 380m. From the Combination of three different data set consisting of LULC pattern, Elevation and bore logs the execution of geotechnical project will be easier. In this research the trend of growth at study area is determined with the elevation at different location and geotechnical properties of soil which is essential for the execution of any geotechnical project.
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