European Committee for Standardization

Execution of special geotechnical work - Bored piles - Incorporates Amendment A1: 2015
 N EN 1536

Annotation

This European Standard establishes general principles for the execution of bored piles (see 3.2).

NOTE 1 This standard covers piles or barrettes which are formed in the ground by excavation and are structural members used to transfer actions and/or limit deformations.

NOTE 2 This standard covers piles with circular cross-section (see Figures 1 and A.1a)) and barrettes (see 3.3) with rectangular, T or L or any other similar cross-section (see Figure 2) concreted in a single operation.

NOTE 3 In the standard the term pile is used for circular cross-section structure and the term barrette for other shapes. Both are bored piles.

This European Standard applies to bored piles (see Figure 3) with:

— uniform cross-section (straight shaft);

— telescopically changing shaft dimensions;

— excavated base enlargements; or

— excavated shaft enlargements.

NOTE The shape of a pile base and of an enlargement depends on the tool used for the excavation.

This European Standard applies (see Note) to:

— bored piles with a depth to width ratio ? 5;

— piles (see Figures 1 and 3) with a shaft diameter 0,3 m ? D ? 3,0 m;

— barrettes (see Figure 2) with the least dimension Wi ? 0,4 m, a ratio Li / Wi between its largest and its least dimensions ? 6 and a cross-sectional area A ? 15 m?;