Geotechnical investigation and testing. Sampling methods and groundwater measurements - Technical principles for execution
Geotechnical investigation and testing. Sampling methods and groundwater measurements - Technical principles for execution
1 Scope This part of ISO 22475 deals with the technical principles of sampling of soil, rock and groundwater, and with groundwater measurements , in the context of geotechnical investigation and testing, as described in EN 1997-1 and EN 1997-2. The aims of such ground investigations are:
a) to recover soil and rock samples of a quality sufficient to assess the general suitability of a site for geotechnical engineering purposes and to determine the required soil and rock characteristics in the laboratory;
b) to obtain information on the sequence, thickness and orientation of strata and joint system and faults;
c) to establish the type, composition and condition of strata;
d) to obtain information on groundwater conditions and recover water samples for assessment of the interaction of groundwater, soil, rock and construction material.
The quality of a sample is influenced by the geological and hydrogeological conditions, the choice and execution of the drilling and/or the sampling method, handling, transport and storage of the samples . This part of ISO 22475 does not cover soil sampling for the purposes of agricultural and environme...
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