EN 1537:1999/AC:2000
(Corrigendum)Execution of special geotechnical work - Ground anchors
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- 21-Jun-2000
- 09-Jul-2013
- 93.020
- CEN/TC 288
Execution of special geotechnical work - Ground anchors
TC - German version not alligned with E and F
Ausführung von besonderen geotechnischen Arbeiten (Spezialtiefbau) - Verpressanker
Exécution des travaux géotechniques spéciaux - Tirant d'ancrage
Izvedba posebnih geotehničnih del – Geotehnična sidra
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Ausführung von besonderen geotechnischen Arbeiten (Spezialtiefbau) - VerpreßankerExécution des travaux géotechniques spéciaux - Tirant d'ancrageExecution of special geotechnical work - Ground anchors93.020Zemeljska dela. Izkopavanja. Gradnja temeljev. Dela pod zemljoEarthworks. Excavations. Foundation construction. Underground worksICS:Ta slovenski standard je istoveten z:EN 1537:1999/AC:2000SIST EN 1537:2002/AC:2004de01-januar-2004SIST EN 1537:2002/AC:2004SLOVENSKI
STANDARD
SIST EN 1537:2002/AC:
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NOTE 3 The following types of structure are considered:
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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.
1.2 This European Standard applies to bored piles (see Figure 3) with:
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- 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.
1.3 This European Standard applies (see Note) to:
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- 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 LBiB / Wi between its largest and its least dimensions 6 and a cross-sectional area A 15 m²;
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1.1 This European Standard establishes general principles for the execution of micropiles.
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- micropile groups;
- reticulated micropiles;
- micropile walls.
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- grout, mortar or concrete;
- a combination of above.
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- reinforcing or strengthening of existing structures to increase the capacity to transfer load to depth with acceptable load settlement characteristics, e.g. underpinning works;
- reducing settlements and/or displacements;
- forming a retaining wall;
- reinforcing of soil to form a bearing and/or retaining structure;
- improving slope stability;
- securing against uplift;
- other applications where micropile techniques are appropriate.
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1.3 Typical bond and compression type anchors are shown in Figure 1 and Figure 2.
1.4 The term "ground" is taken to encompass soil, rock and fill already in place or existing prior to the execution of the construction work.
1.5 The planning and design of ground anchors calls for experience and knowledge in this specialised field.
1.6 The installation and testing phases require skilled, qualified labour and supervision.
1.7 This standard cannot replace the knowledge of specialist personnel and the expertise of experienced contractors required to apply this standard.
1.8 This standard does not address systems such as tension piles, screw anchors, mechanical anchors, soil nails, dead-man anchors or expander anchors as these do not fulfil the requirements of this standard.
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Vertical drainage is used both in on land and in marine constructions for the following purposes:
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speeding up the consolidation process by decreasing the path lengths for pore water dissipation;
increase of stability (by increasing effective stresses in the soil);
groundwater lowering;
mitigation of liquefaction effects.
In each case there is an overall treatment of the soil (the volume of the drains is small in relation to the soil volume treated).
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Vertical drainage can also be combined with other foundation or ground improvement methods, e.g. electro osmosis, piles and compacted sand piles, dynamic compaction and deep mixing.
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