BS EN 1538:2010+A1:2015
Execution of special geotechnical works. Diaphragm walls
| Standard number: | BS EN 1538:2010+A1:2015 |
| Pages: | 52 |
| Released: | 2015-06-30 |
| ISBN: | 978 0 580 87597 7 |
| Status: | Standard |
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.
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.
Diaphragm walls can be permanent or temporary structures.
The following types of structure are considered:
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retaining walls: usually constructed to support the sides of an excavation in the ground. They include:
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cast in situ concrete diaphragm walls;
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precast concrete diaphragm walls;
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reinforced slurry walls;
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cut-off walls: usually constructed to prevent migration of groundwater, clear or polluted, or of other contaminants present in the ground. They include:
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slurry walls (possibly with membranes or sheet piles);
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plastic concrete walls.
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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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