Spatial Modeling of Geotechnical Information Using GML

Abstract

Abstract Geotechnical data characterizes the geometry and physical properties of soil deposits, which are determined from field observations, in‐situ and laboratory tests, and engineering analyses. Until now, geotechnical information was mainly described and exchanged as relational data, which occasionally included spatial characteristics. Hereafter, the spatial features of geotechnical data are investigated by invoking the geotechnical data model of the Association of Geotechnical and Geoenvironmental Specialists (AGS), which is widely used in the United Kingdom to exchange geotechnical data in engineering practice. The basic geometric objects in AGS geotechnical data are first identified. These geometric objects are mapped to basic geometric features of the Geography Markup Language (GML). AGS data can therefore be fully rendered using GML‐conformant schemas, which make geotechnical data readily importable into GML‐aware applications. The data can be also imported to mainstream GIS applications using Extensible Markup Language (XML) transformations. This article demonstrates the rendition of AGS data format to a GML‐conformant schema and illustrates the implementation of the new format through a few geotechnical examples.

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