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EUROCODE 7

© Soil Property Testing Limited 2015 all rights reserved.

Downloads are being compiled to give ongoing information on Eurocode 7 and its gradual adoption as time goes on.


With regard to Laboratory testing,  the disciplines of BS1377:1990: parts 1-8, remain current, and the testing detailed in BS EN 17892 series is not presently being invoked in Britain.


BS 5930:1999  “Code of Practice for site investigation” was amended in August 2010 to comply with the requirements of BS EN ISO 14688 Parts 1 and 2. not the least as follows:


Field descriptions of soils remain similar , but consistency is determined by hand pressures,  not shear strengths,  and the previously mutual exclusive rule of not using the terms silt and clay together,  is removed to allow the descriptions of silty CLAY, or clayey SILT to be used again.


The shear strength of soils when measured by Field or Hand Shear Vane Apparatus,  or in the laboratory by  Quick Undrained Triaxial compression test,  shall be expressed as Table 5 below:


   Term based on measurement                  Undrained Shear Strength classification definition Cu, in kPa

                                                                        (From BS EN ISO 14688-2:2004,5.3,Table 5)


        Extremely low                                                                                      <10

        Very low                                                                                                 10 - 20

        Low                                                                                                        20 - 40

        Medium                                                                                                  40 - 75

        High                                                                                                        75 - 150

        Very high                                                                                               150 - 300

        Extremely high                                                                                      300 - 600


DURING THIS TRANSITIONAL PERIOD WE WILL ENDEAVOUR AT OUR “CONTRACT REVIEW STAGE” TO  ASCERTAIN  FROM CUSTOMERS EXACTLY THE TERMINOLOGY THEY WISH TO BE USED  WITH DUE REGARD TO THE ABOVE,  AND OTHER PARAMETERS AS DETAILED  IN BS EN ISO 14688 Parts 1 & 2


Presently some customers are submitting U(T)100 thin walled tubes for shear strength and consolidation testing.



Simon Townend

March 2011

Introduction of EUROCODE 7

Eurocode 7 Downloads

Sampling Methods and Classes

Field Description of Soils - encompassing Eurocode 7

Ground Engineering Technical Note - BS EN ISO 22475-1: Implications for geotechnical sampling in the UK: August 2009

Ground Engineering Technical Note - Development of a thin wall open drive tube sampler (UT100): March 2010

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IntroductionEURO_CODE_7_files/EUROCODE%207%20%20%20%20feb%202011.pdf
Sampling MethodsEURO_CODE_7_files/SAMPLING%20METHODS%20AND%20CLASSES%20feb%202011.pdf
Field DescriptionEURO_CODE_7_files/PRESENTATION%20FIELD%20DESCRIPTIONS.%20nov%202008.pdf
GE Technical Note: August 2009EURO_CODE_7_files/GE%20-%20Soil%20Engineering%20Aug%2009%20Article.pdf
GE Technical Note:   March 2009EURO_CODE_7_files/GE%20-%20Soil%20Engineering%20UT100%20Article.pdf