BS EN 1997-2:2007

Foreword
Section 1 - General
Section 2 - Planning of ground investigations
Section 3 - Soil and rock sampling and groundwater measurements
Section 4 - Field tests in soil and rock
Section 5 - Laboratory tests on soil and rock
Section 6 - Ground investigation report
Annex A (informative) - List of test results of geotechnical
        test standards
Annex B (informative) - Planning of geotechnical investigations
Annex C (informative) - Example of groundwater pressure derivations
        based on a model and long term measurements
Annex D (informative) - Cone and piezocone penetration tests
Annex E (informative) - Pressure meter test
Annex F (informative) - Standard penetration test
Annex G (informative) - Dynamic probing test
Annex H (informative) - Weight sounding test
Annex I (informative) - Field vane test
Annex J (informative) - Flat dilatometer test Example of correlations
        between E[OED] and DMT results
Annex K (informative) - Plate loading test
Annex L (informative) - Detailed information on preparation of soil
        specimens for testing
Annex M (informative) - Detailed information on tests for
        classification, identification and description of soil
Annex N (informative) - Detailed information on chemical testing
        of soil
Annex O (informative) - Detailed information on strength index
        testing of soil
Annex P (informative) - Detailed information on strength testing
        of soil
Annex Q (informative) - Detailed information on compressibility
        testing of soil
Annex R (informative) - Detailed information on compaction testing
        of soil
Annex S (informative) - Detailed information on permeability testing
        of soil
Annex T (informative) - Preparation of specimen for testing on rock
        material
Annex U (informative) - Classification testing of rock material
Annex V (informative) - Swelling testing of rock material
Annex W (informative) - Strength testing of rock material
Annex X (informative) - Bibliography

Gives rules supplementary to EN 1997-1 related to: (a) planning and reporting of ground investigations; (b) general requirements for a number of commonly used laboratory and field tests; (c) interpretation and evaluation of test results; (d) derivation of values of geotechnical parameters and coefficients.

1.1 Scope

1.1.1 Scope of Eurocode 7

(1) EN 1997 is intended to be used in conjunction with EN 1990:2002which establishes the principles and requirements for safety and serviceability, describes the basis of design and verification and gives guidelines for related aspects of structural reliability.

(2) EN 1997 is intended to be applied to the geotechnical aspects of the design of buildings and civil engineering works. It is subdivided into various separate parts (see 1.1.2).

(3) EN 1997 is concerned with the requirements for strength, stability, serviceability and durability of structures. Other requirements, e.g. concerning thermal or sound insulation, are not considered.

(4) Numerical values of actions on buildings and civil engineering works to be taken into account in design are provided in EN 1991 for the various types of construction. Actions imposed by the ground, such as earth pressures, shall be calculated according to the rules of EN 1997 .

(5) Separate European Standards are intended to be used to treat matters of execution and workmanship. They are denoted in the relevant sections.

(6) In EN 1997 execution is covered to the extent that is necessary to conform to the assumptions of the design rules.

(7) EN 1997 does not cover the special requirements of seismic design. EN 1998 provides additional rules for geotechnical seismic design, which complete or adapt the rules of this standard.

1.1.2 Scope of EN 1997-2

(1) EN 1997-2 is intended to be used in conjunction with EN 1997-1 and provides rules supplementary to EN 1997-1 related to:

• planning and reporting of ground investigations;

• general requirements for a number of commonly used laboratory and field tests;

• interpretation and evaluation of test results;

• derivation of values of geotechnical parameters and coefficients.

In addition, examples of the application of field test results to design are given.

NOTE Establishment of characteristic values is covered in EN 1997-1 .

(2) This document gives no specific provisions for environmental ground investigations.

(3) Only commonly used geotechnical laboratory and field tests are covered in this standard. These were selected on the basis of their importance in geotechnical practice, availability in commercial geotechnical laboratories and existence of an accepted testing procedure in Europe. The laboratory tests on soils are mainly applicable to saturated soils.

NOTE It is expected that updates of the present standard will gradually include laboratory and field tests covering additional aspects of soil and rock behaviour.

(4) The provisions of this standard apply primarily to projects of geotechnical category 2, as defined in 2.1 of EN 1997-1:2004 . The ground investigation requirements for category 1 projects are normally limited as the verifications often will be based on local experience. For geotechnical category 3 projects, the amount of investigations required will normally be at least the same as indicated for geotechnical category 2 projects in the following sections. Additional investigations and more advanced tests, related to the circumstances that place a project in geotechnical category 3, may be necessary.

(5) The derivation of parameter values is dedicated primarily to the design of pile and spread foundations based on field testing, as detailed in Annexes D, E, F and G of EN 1997-1:2004 .