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(Use Case Vocabulary) Geotechnical borehole

martluth edited this page Nov 22, 2018 · 27 revisions

Summary

Boreholes drilled for the purposes of site investigations. In-situ borehole measurements and results of geotechnical laboratory tests are taken on samples to gain an understanding of the engineering properties of rocks and soils. Several geotechnical in-situ tests do not rely on borehole.

In UK, for geotechnical data, the AGS format is the the industry standard for the electronic transfer of this data. → https://www.ags.org.uk/data-format/

Tentative of having a web compliant exchange format (XML) for AGS was pushed by DIGGS → https://www.diggsml.org/

In France, the MINnD UC8-GT (on going project) propose a conceptual model for Geotechnical investigations.

In Germany, GeoValML (on going project) propose a similar approach.

Both projects were presented in the GeoScienceDWG session in Stuttgart TC and rely on ISO19156 → http://external.opengis.org/twiki_public/GeoScienceDWG/WebHome

Concept/Feature

Borehole

Definition

"A borehole is the generalized term for any narrow shaft drilled in the ground.". INSPIRE definition (removing ", either vertically, horizontally, or inclined." from the initial GeoSciML one).

In French distinction exist between two terms "Sondage" and "Forage". The first is used for a drill that aimed at studying the sub-soil, while the second is used when the drill is done in order to exploit a subsurface resource (eg water, oil, …​).

Properties/Attributes

identifier

name

geolocalisation: X, Y, SRS

Depth (Final)

Ground level relative to datum

drilling method

start date

end date

purpose

Sample

Definition

"Sample information for which various tests are conducted"

AGS Format: Project/Definition of data types/Units/Associated Files

Definition

These are concepts that support the use and generation of the AGS Format but does not completely affect the use of the data. Details of the Site Investigation Report: Also the project information could capture the terms and conditions for that project. Some of these concepts/groups (e.g. abbr, units, types) are however, necessary to understand some parameters attributed in the data.

PROJ - Project Information

ABBR - Abbreviation Definitions

DICT - User defined Groups and Headings

FILE - Associated files

TRAN - Data File Transmission Information / Data Status

TYPE - Definition of Data Types

UNIT - Definition of Units

→ Specific to AGS

Associated Observations & Measurements on borehole

Definition

"Tests and analysis made on the field. FOI = Borehole"

Geology log

Definition

"Log representing the field geological descriptions - Lithology, stratigraphy and unit descriptions at downhole intervals."

Coring Information - RQD and percentage recovery - Insitu

Definition

"

Standard Penetration Test - In-situ

Definition

"

Fracture Index - In-situ

Definition

"

Water Strike - In-situ

Definition

" Dynamic Cone Penetrometer tests # Definition "

Dynamic Probe tests

Definition

"

Drilling Flush Details

Definition

"

Density tests

Definition

"

Permeability tests

Definition

"

Redox tests

Definition

"

Resistivity tests

Definition

"

Soakaway tests

Definition

"

Associated Observations & Measurements on sample

Definition

"Tests and analysis made on what has been extracted from the borehole. FOI = Sample"

Aggregate Laboratory Rock Testing - Sample

Definition

"

Compaction Tests - Sample

Definition

"

Consolidation Tests - Sample

Definition

"

Classification Tests - Sample

Definition

"Moisture content, density, plasticity index

Strength Tests - Sample

Definition

"Uniaxial and triaxial strength tests

Particle Size Tests - Sample

Definition

"Uniaxial and triaxial strength tests

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