oSIST prEN 1997-2:2022
(Main)Eurocode 7 - Geotechnical design - Part 2: Ground properties
Eurocode 7 - Geotechnical design - Part 2: Ground properties
Requirements for the execution, interpretation and use of results of laboratory tests to assist in the geotechnical design of structures
Eurocode 7: Entwurf, Berechnung und Bemessung in der Geotechnik - Teil 2: Erkundung und Untersuchung des Baugrunds
1.1 Anwendungsbereich von EN 1997-2
(1) Dieses Dokument enthält Regeln für die Bestimmung von Baugrundeigenschaften für die Planung und den Nachweis von geotechnischen Bauwerken.
(2) Dieses Dokument enthält Anforderungen und Leitlinien für die Planung von Baugrunduntersuchungen, die Erfassung von Informationen über Baugrundeigenschaften und Grundwasserverhältnisse sowie die Erstellung des Baugrundmodells.
(3) Dieses Dokument enthält Anforderungen und Anleitungen für die Auswahl von Felduntersuchungs und Laborprüfverfahren, um abgeleitete Werte von Baugrundeigenschaften zu erhalten.
(4) Dieses Dokument enthält Anforderungen und Leitlinien für die Darstellung der Ergebnisse der Baugrund¬untersuchung, einschließlich abgeleiteter Werte von Baugrundeigenschaften, im Geotechnischen Unter¬suchungsbericht.
1.2 Voraussetzungen
(1) Die Vorgaben nach EN 1997-2 beruhen auf den Voraussetzungen nach EN 1990 und EN 1997-1.
(2) Dieses Dokument ist dazu vorgesehen, zusammen mit EN 1997-1, die allgemeine Regeln für die Bemessung und den Nachweis für sämtliche geotechnischen Bauwerke enthält, angewendet zu werden.
(3) Dieses Dokument ist dazu vorgesehen, zusammen mit EN 1997-3, die spezifische Regeln für die Bemessung und den Nachweis für bestimme Arten von geotechnischen Bauwerken enthält, angewendet zu werden.
(4) Dieses Dokument ist dazu vorgesehen, zusammen mit EN 1998-1-1, die die Anforderungen an die Baugrundeigenschaften enthält, die für die Festlegung der Erdbebeneinwirkung erforderlich sind, angewendet zu werden.
(5) Dieses Dokument ist dazu vorgesehen, zusammen mit EN 1998-5, die Regeln für die Bemessung und Konstruktion von geotechnischen Bauwerken in Erdbebengebieten enthält, angewendet zu werden.
Eurocode 7 - Calcul géotechnique - Partie 2 : Propriétés des terrains
1.1 Domaine d’application de la prEN 1997-2
(1) Le présent document donne les règles relatives à la détermination des propriétés des terrains pour le calcul et la vérification des structures géotechniques.
(2) Le présent document couvre les consignes relatives à la reconnaissance des terrains, la collecte des informations sur les propriétés des terrains et les conditions hydrologiques, ainsi que la préparation du modèle de terrain.
(3) Le présent document couvre les consignes relatives à la sélection des méthodes pour la reconnaissance des terrains et les essais en laboratoire dans le but d’obtenir des valeurs déduites des propriétés des terrains.
(4) Le présent document couvre les consignes relatives à la présentation des résultats de la reconnaissance des terrains, y compris des valeurs déduites des propriétés des terrains, dans le rapport de reconnaissance des terrains.
1.2 Hypothèses
(1) Les dispositions de la prEN 1997-2:2022 sont fondées sur les hypothèses données dans la prEN 1990:2021 et la prEN 1997-1:2022.
(2) Le présent document est destiné à être utilisé conjointement avec la prEN 1997-1:2022, qui donne des règles générales pour le calcul et la vérification de toutes les structures géotechniques.
(3) Le présent document est destiné à être utilisé conjointement avec la prEN 1997-3:2022, qui donne des règles spécifiques pour le calcul et la vérification de certains types de structures géotechniques.
(4) Le présent document est destiné à être utilisé conjointement avec la prEN 1998-1-1, qui donne les exigences relatives aux propriétés des terrains, nécessaires pour définir l’action sismique.
(5) Le présent document est destiné à être utilisé conjointement avec la prEN 1998-5, qui donne des règles pour le calcul des structures géotechniques dans les régions sismiques.
Evrokod 7 - Geotehnično projektiranje - 2. del: Lastnosti tal
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2022
Evrokod 7 - Geotehnično projektiranje - 2. del: Lastnosti tal
Eurocode 7 - Geotechnical design - Part 2: Ground properties
Eurocode 7: Entwurf, Berechnung und Bemessung in der Geotechnik - Teil 2: Erkundung
und Untersuchung des Baugrunds
Eurocode 7 - Calcul géotechnique - Partie 2 : Propriétés des terrains
Ta slovenski standard je istoveten z: prEN 1997-2
ICS:
91.010.30 Tehnični vidiki Technical aspects
93.020 Zemeljska dela. Izkopavanja. Earthworks. Excavations.
Gradnja temeljev. Dela pod Foundation construction.
zemljo Underground works
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
prEN 1997-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2022
ICS 91.010.30; 93.020 Will supersede EN 1997-2:2007
English Version
Eurocode 7 - Geotechnical design - Part 2: Ground
properties
Eurocode 7: Entwurf, Berechnung und Bemessung in
der Geotechnik - Teil 2: Erkundung und Untersuchung
des Baugrunds
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 250.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1997-2:2022 E
worldwide for CEN national Members.
prEN 1997-2:2022 (E)
Contents Page
European foreword . 4
0 Introduction . 5
1 Scope . 7
1.1 Scope of prEN 1997-2 . 7
1.2 Assumptions . 7
2 Normative references . 7
3 Terms, definitions, and symbols . 8
3.1 Terms and definitions . 8
3.2 Symbols and abbreviations .16
4 Ground Model .21
4.1 General .21
4.2 Derived values .21
5 Ground investigation .22
5.1 General .22
5.2 Contents of ground investigation .23
5.3 Ground investigation techniques .25
5.4 Planning of preliminary and design investigations .27
6 Description and classification of the ground .31
6.1 General .31
6.2 Discontinuities and weathered zones.31
7 State, physical, and chemical properties .32
7.1 State properties .32
7.2 Physical properties .36
7.3 Chemical properties .41
8 Strength .45
8.1 Strength envelopes and parameters for soils and rocks .45
8.2 Soil strength .48
8.3 Rock strength .51
8.4 Interface strengths .54
9 Stiffness, compressibility and consolidation .54
9.1 Ground stiffness .54
9.2 Ground compressibility and consolidation .59
10 Cyclic, dynamic, and seismic properties .62
10.1 General .62
10.2 Measurement of cyclic response.62
10.3 Secant modulus and damping ratio curves .63
10.4 Very small strain moduli and wave velocities .64
10.5 Excess pore water pressure .66
10.6 Cyclic shear strength .67
10.7 Additional parameters for seismic site response evaluation .68
11 Groundwater and geohydraulic properties .68
11.1 General .68
11.2 Groundwater pressure and pressure head .69
11.3 Geohydraulic properties .71
prEN 1997-2:2022 (E)
12 Geothermal properties . 73
12.1 General . 73
12.2 Frost susceptibility . 74
12.3 Thermal conductivity . 75
12.4 Heat capacity . 75
12.5 Thermal diffusivity . 75
12.6 Thermal linear expansion . 75
12.7 Direct determination of geothermal properties . 75
13 Reporting . 76
13.1 Ground Investigation Report . 76
Annex A (normative) Ground Investigation Report . 77
Annex B (informative) Suitability and applicability of test methods . 80
Annex C (informative) Desk study and site inspection . 97
Annex D (informative) Information to be obtained from ground investigation . 103
Annex E (informative) Methods for determining density index and strength properties . 106
Annex F (informative) Methods for determining stiffness and consolidation properties of
soils . 112
Annex G (informative) Indirect methods for determining cyclic, dynamic, and seismic
properties of soils . 118
Bibliography . 123
prEN 1997-2:2022 (E)
European foreword
This document (prEN 1997-2:2022) has been prepared by Technical Committee CEN/TC 250 “Structural
Eurocodes”, the secretariat of which is held by BSI. CEN/TC 250 is responsible for all Structural
Eurocodes and has been assigned responsibility for structural and geotechnical design matters by CEN.
This document will supersede EN 1997-2:2007.
The first generation of EN Eurocodes was published between 2002 and 2007. This document forms part
of the second generation of the Eurocodes, which have been prepared under Mandate M/515 issued to
CEN by the European Commission and the European Free Trade Association.
The Eurocodes have been drafted to be used in conjunction with relevant execution, material, product
and test standards, and to identify requirements for execution, materials, products and testing that are
relied upon by the Eurocodes.
The Eurocodes recognize the responsibility of each Member State and have safeguarded their right to
determine values related to regulatory safety matters at national level through the use of National
Annexes.
prEN 1997-2:2022 (E)
0 Introduction
0.1 Introduction to the Eurocodes
The Structural Eurocodes comprise the following standards generally consisting of a number of Parts:
— EN 1990, Eurocode: Basis of structural and geotechnical design
— EN 1991, Eurocode 1: Actions on structures
— EN 1992, Eurocode 2: Design of concrete structures
— EN 1993, Eurocode 3: Design of steel structures
— EN 1994, Eurocode 4: Design of composite steel and concrete structures
— EN 1995, Eurocode 5: Design of timber structures
— EN 1996, Eurocode 6: Design of masonry structures
— EN 1997, Eurocode 7: Geotechnical design
— EN 1998, Eurocode 8: Design of structures for earthquake resistance
— EN 1999, Eurocode 9: Design of aluminium structures
— New parts are under development, e.g. Eurocode for design of structural glass
The Eurocodes are intended for use by designers, clients, manufacturers, constructors, relevant
authorities (in exercising their duties in accordance with national or international regulations),
educators, software developers, and committees drafting standards for related product, testing and
execution standards.
NOTE Some aspects of design are most appropriately specified by relevant authorities or, where not specified,
can be agreed on a project-sp
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.