The STRATA 3 data management system provides a means for storage, selective retrieval and comprehensive graphical representation of geological and geotechnical information; it comprises two elements, a database and a graphics package. Geological information from boreholes and trial pits as well as geotechnical data from in-situ and laboratory tests are recorded and stored within the database elements of the system. The package which produces the graphical output performs interpolation between these randomly distributed known data points and produces detailed graphics which are output in the form of multi-surface, isometric projections and geological sections as well as location plans and contour maps. The database can be interrogated to provide information on data availability: viz. what data exists within an area, who holds it, where it is held or can be used to produce selective summaries of the records themselves. The application of the system to civil engineering practice is discussed in respect of site investigations, preliminary foundation design and estimating costs of ground works and earthworks.

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