BS EN 1997-2-2007 欧洲法规7.土工设计.土地勘测和测试

标准号：BS EN 1997-2-2007
中文标准名称：欧洲法规7.土工设计.土地勘测和测试
英文标准名称：Eurocode 7. Geotechnical design. Ground investigation and testing
标准类型：P21
发布日期：2007/4/30 12:00:00
实施日期：2007/4/30 12:00:00
中国标准分类号：P21
国际标准分类号：91.010.30;91.060.01;91.120.20;93.020
引用标准：EN 1990-2002;EN 1997-1-2004;EN ISO 14688-1;EN ISO 14688-2;EN ISO 14689-1;EN ISO 22475-1;EN ISO 22476-1;EN ISO 22476-2;EN ISO 22476-3;EN ISO 22476-4;EN ISO 22476-5;EN ISO 22476-6;EN ISO 22476-8;EN ISO 22476-9;EN ISO 22476-12;EN ISO 22476-13
适用范围：1.1.1 Scope of Eurocode 7(1) EN 1997 is intended to be used in conjunction with EN 1990:2002, which establishes theprinciples and requirements for safety and serviceability, describes the basis of design andverification 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 andcivil 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 anddurability of structures. Other requirements, e.g. concerning thermal or sound insulation, are notconsidered.(4) Numerical values of actions on buildings and civil engineering works to be taken intoaccount in design are provided in EN 1991 for the various types of construction. Actionsimposed by the ground, such as earth pressures, shall be calculated according to the rules ofEN 1997.(5) Separate European Standards are intended to be used to treat matters of execution andworkmanship. They are denoted in the relevant sections.(6) In EN 1997 execution is covered to the extent that is necessary to conform to the assumptionsof the design rules.(7) EN 1997 does not cover the special requirements of seismic design. EN 1998 providesadditional rules for geotechnical seismic design, which complete or adapt the rules of thisstandard.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 rulessupplementary 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 testscovering additional aspects of soil and rock behaviour.(4) The provisions of this standard apply primarily to projects of geotechnical category 2, asdefined in 2.1 of EN 1997-1:2004. The ground investigation requirements for category 1 projectsare normally limited as the verifications often will be based on local experience. Forgeotechnical category 3 projects, the amount of investigations required will normally be at leastthe same as indicated for geotechnical category 2 projects in the following sections. Additionalinvestigations and more advanced tests, related to the circumstances that place a project ingeotechnical category 3, may be necessary.(5) The derivation of parameter values is dedicated primarily to the design of pile and spreadfoundations based on field testing, as detailed in Annexes D, E, F and G of EN 1997-1:2004.