This part of ISO 22475 deals with the technical principles of sampling of soil, rock and groundwater, and with groundwater measurements, in thecontext of geotechnical investigationand 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 environmental soil investigation.
NOTE 1 Soil sampling for these purposes is to befound in ISO 10381.
Water sampling for the purposes of quality control, quality characterisation, and identification of sources of pollution of water, including bottom deposits and sludges is not covered.
NOTE 2 Water sampling for these purposes is to be found in ISO 5667.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 791, Drill rigs — Safety
EN 996, Piling equipment — Safety requirement
EN 1997-1, Eurocode 7: Geotechnical design — Part 1: General rules
EN 1997-2, Eurocode 7: Geotechnical design — Part 2: Design assisted by laboratory testing
ISO 22476-3, Geotechnical investigation and testing — Field testing — Part 3: Standard penetration test
ISO 14688-1, Geotechnical investigation and testing — Identification and classification of soil — Part 1: Identification and description
ISO 14689-1, Geotechnical investigation and testing — Identification and classification of rock — Part 1: Identification and description
ISO 3551-1, Rotary core diamond drilling equipment — System A — Part 1: Metric units
ISO 3552-1, Rotary core diamond drilling equipment — System B — Part 1: Metric units
GUM: Guide to the expression of uncertainty in measurement , BIPM/IEC/IFCC/ISO/OIML/IUPAC/IUPAP
ISO 10097-1, Wireline diamond core drilling equipment — System A — Part 1: Metric units