Design and construction considerations

3.5.1 Durability

The significance of environmental conditions must be assessed so that materials are suitably protected. [en 1997-1 §2.3(1)P]

3.5.2 Design considerations relating to construction

Account shall be taken of the possible differences between the ground properties and the geotechnical parameters obtained from test results and those governing the behaviour of the geotechnical structure.

Parameters selected for design should reflect the effects of construction on their operating values. [en 1997-1 §2.4.3 (4)]

3.5.3 Execution

Sections 6-9 and 11-12 of EN 1997-1 give little practical guidance on execution, but instead refer the reader to separate Euronorms that provide more detailed information.

Frost damage of building foundations will be avoided if the soil is not frost-susceptible, the foundation is below the frost-free depth, or frost is eliminated by insulation. §6 refers to EN ISO 137938 for guidance on frost protection measures. [en 1997-1 §6.4(2 and 3)]

§7 refers to ENs 1536, 12063, 12699, and 14199 for guidance on execution of piles. These standards are discussed at length in Chapter 15.

§8 refers to EN 1537 for guidance on execution of anchorages. This standard is discussed at length in Chapter 15. [en 1997-1 §8.4-8.5 and 8.7-8.9]

§9 makes no reference to execution standards for retaining structures, although ENs 1536, 1537, 1538, and 12063 are relevant. These standards are discussed at length in Chapter 15.

§11 makes no reference to execution standards for slopes and cuttings, although ENs 1537, 14475, 14490, and 15237 may be relevant. These standards are discussed at length in Chapter 15.

§12 makes no reference to execution standards for embankments.

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