BS EN 1997-1-2004+CORR-2009(2010) 国外国际标准.pdf

BRITISH STANDARD BS EN 1997-1:2004 Incorporating corrigendum February 2009 Eurocode 7: Geotechnical design — Part 1: General rules ICS 91.010.30; 93.020 BS EN 1997-1:2004 National foreword This British Standard is the UK implementation of EN 1997-1:2004 incorporating corrigendum February 2009. It supersedes DD ENV 1997-1:2005 which is withdrawn. The start and finish of text introduced or altered by corrigendum is indicated in the text by tags. Text altered by CEN corrigendum February 2009 is indicated in the text by ˆ‰. The structural Eurocodes are divided into packages by grouping Eurocodes for each of the main materials: concrete, steel, composite concrete and steel, timber, masonry and aluminium; this is to enable a common date of withdrawal (DOW) for all the relevant parts that are needed for a particular design. The conflicting national standards will be withdrawn at the end of the coexistence period after all the EN Eurocodes of a package are available. Following publication of the EN, there is a period allowed for national calibration during which the National Annex is issued, followed by a coexi