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Homepage>BS Standards>93 CIVIL ENGINEERING>93.020 Earthworks. Excavations. Foundation construction. Underground works>BS EN 1538:2010+A1:2015 Execution of special geotechnical works. Diaphragm walls
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BS EN 1538:2010+A1:2015 Execution of special geotechnical works. Diaphragm walls

BS EN 1538:2010+A1:2015

Execution of special geotechnical works. Diaphragm walls

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Standard number:BS EN 1538:2010+A1:2015
Pages:52
Released:2015-06-30
ISBN:978 0 580 87597 7
Status:Standard
DESCRIPTION

BS EN 1538:2010+A1:2015


This standard BS EN 1538:2010+A1:2015 Execution of special geotechnical works. Diaphragm walls is classified in these ICS categories:
  • 93.020 Earthworks. Excavations. Foundation construction. Underground works

This European Standard establishes general principles for the execution of diaphragm walls as either retaining walls or cut-off walls.

NOTE 1

This standard covers only structures constructed in a trench excavated with a support fluid or in dry conditions, where soil is removed and replaced by concrete or slurry and with wall thickness B ≥ 40 cm.

NOTE 2

Diaphragm walls can be permanent or temporary structures.

NOTE 3

The following types of structure are considered:

  1. retaining walls: usually constructed to support the sides of an excavation in the ground. They include:

    1. cast in situ concrete diaphragm walls;

    2. precast concrete diaphragm walls;

    3. reinforced slurry walls;

  2. cut-off walls: usually constructed to prevent migration of groundwater, clear or polluted, or of other contaminants present in the ground. They include:

    1. slurry walls (possibly with membranes or sheet piles);

    2. plastic concrete walls.

NOTE 4

Walls formed shallow vertical trenches (typically excavations with a ratio of depth over thickness  D/ B < 5 or D < 5 m) are not covered by this standard.

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