NF EN ISO 19901-8, M87-264-8 (09/2023)

This document specifies requirements, recommendations and guidelines for offshore land surveys, relating to: (a) the objectives, planning and execution of offshore land surveys; b) deployment of reconnaissance equipment; (c) drilling and logging; (d) in situ testing; e) sampling; (f) laboratory tests; g) reporting. Although this document focuses on soil surveys, it also provides less detailed recommendations for surveys of chalky soils, limestone soils, consolidated soils and soft rocks. Foundation design is not covered in this document. NOTE 1 ISO 19901-4 and the respective design standards covering the design of foundations for specific types of offshore structures to meet the requirements of the application-specific standards are given on the ISO website. To the extent available and appropriate, the results of marine geophysical surveys are used for the planning, optimization and interpretation of offshore soil investigation. This document does not address the planning, execution and interpretation of marine geophysical surveys, nor planning and scoping of geological risk assessment studies, but only covers their aspects related to offshore soil reconnaissance. NOTE 2 ISO 19901-10 covers the planning, execution and interpretation of marine geophysical surveys. This document specifies requirements and provides recommendations for obtaining measured values and derived values. This document excludes requirements for the determination of design values and representative values. Limited guidance is provided in 11.3 regarding data interpretation. This document is intended for project owners, soil investigation companies, designers, installation companies, geotechnical laboratories, public authorities and regulatory bodies concerned with offshore soil investigation for all types of structures installed offshore, or by geological risk assessment studies.
(Automatic translation from French)