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Supervision and monitoring (or variations on

this title)

(missing)

tCommon headings apply to §6-9, except where replaced by specific headings shown tCommon headings apply to §6-9, except where replaced by specific headings shown

Sections 6-9 and 11-12 of EN 1997-1, dealing with the rules for geotechnical structures, each present the information in a different manner reflecting the authorship of these sections. This difference in authorship has led to inconsistencies in the sub-section headings for each geotechnical structure and to the associated level of detail. For example, §6.5 for spread foundations provides a relatively short section on ultimate limit state design with no illustrations, whereas this topic is covered in detail in §9.7 for retaining structures with a large number of diagrams.

The order of the sections is not ideal. The topics covered by Sections 10 and 11 can apply to any site, regardless of the type of foundation that is going to be built. Section 10 deals with problems relating to the flow of water through soils and rocks (i.e. particulars of limit states HYD and UPL). Section 11 deals primarily with slope stability, an issue relevant to other geotechnical structures, such as retaining walls and footings. In our opinion, Sections 10 and 11 would have been better placed before Section 6, 'Spread foundations'.

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