Geotechnical information system employs spatial analysis to utilize information gathered from Cone Penetration Testing (CPT)

Abstract

Surakarta has diverse structures, including malls, shopping centers, hotels, offices, markets, hospitals, colleges, and schools. However, the Regional Government lacks a comprehensive data information system about the Cone Penetration Test (CPT). Such a system benefits investors seeking to develop new infrastructure in Surakarta. In order to tackle this problem, a research study was carried out to develop an Information System based on CPT data regarding the depth of hard soil throughout the city. The investigation analyzed pre-existing CPT data, its compilation, and cartographic representation. However, the arbitrary allocation of CPT data presents a challenge. Results of the study indicate that the most predominant depth of compacted soil qc 250 kg/cm2 in Surakarta is 3-5 meters below the surface. Moreover, comparing the depth of CPT soil in the field with GIS at multiple observation points indicates findings that mostly conform to GIS predictions and those of in situ tests. Combining CPT data with ArcGIS software has been a highly successful approach in identifying projects and providing robust geotechnical information.