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BS EN 1537:2013

BS EN 1537:2013

$198.66

Execution of special geotechnical works. Ground anchors

Published By Publication Date Number of Pages
BSI 2013 56
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1.1 This European Standard covers ground anchors grouted into the ground which are stressed and tested. They can be used for permanent or temporary applications.

NOTE For the purpose of this standard the term ‘anchor(s)’ refers to ‘ground anchor(s)’.

1.2 The anchors are designed in accordance with EN 1997-1 and are tested in accordance with prEN ISO 22477-5.

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.

PDF Catalog

PDF Pages PDF Title
6 Foreword
7 1 Scope
Figure 1 — Sketch of a bond type ground anchor — Details of anchor head and head protection omitted
8 Figure 2 — Sketch of a compression type ground anchor — Details of anchor head and head protection omitted
9 2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
12 3.2 Symbols
13 4 Information needed for the execution of the work
4.1 General
4.2 Special features
14 5 Geotechnical investigation
5.1 General
5.2 Specific requirements
15 6 Materials and products
6.1 General
6.2 Anchor components subject to corrosion protection
6.2.1 Tendon
16 6.2.2 Anchor head
6.2.3 Coupler
6.2.4 Tendon bond length
6.2.5 Components in the borehole
17 6.2.6 Compression element of a compression type anchor
6.3 Corrosion protection of steel tendon and stressed steel components
6.3.1 General
6.3.2 Temporary ground anchor
18 6.3.3 Permanent ground anchor
6.4 Grouts for corrosion protection and load transfer
6.4.1 Cement grout for temporary anchors
19 6.4.2 Cement grout for permanent anchors inside encapsulations
6.4.3 Cement grout for permanent anchors outside encapsulations
6.4.4 Resin Grout
20 6.5 Other components and materials for corrosion protection barriers
6.5.1 Plastic sheaths and ducts
21 6.5.2 Heat shrink sleeves
6.5.3 Seals
6.5.4 Corrosion protection compounds based on petroleum, waxes or greases
6.5.5 Sacrificial metallic coating
22 6.5.6 Other coatings on steel parts
6.5.7 Steel tubes and caps
6.6 Application of corrosion protection
6.6.1 General
6.6.2 Tendon free and bond lengths
23 6.6.3 Anchor head
24 6.7 Corrosion protection system
25 7 Considerations related to design
8 Execution
8.1 Drilling of holes
8.1.1 Drilling Methods
26 8.1.2 Tolerances
27 8.2 Manufacturing, transport, handling and installation of tendons
8.2.1 Manufacture
8.2.2 Transport, handling and installation
28 8.3 Grouting
8.3.1 General
8.3.2 Borehole testing
29 8.3.3 Pre-grouting
8.3.3.1 General
8.3.3.2 Pre-grouting of rock
8.3.3.3 Pre-grouting of soil
8.3.4 Anchor grouting
30 8.3.5 Post-grouting
31 8.4 Stressing
8.4.1 General
8.4.2 Equipment
8.4.3 Stressing procedure
32 8.4.4 Lock off of anchor
8.4.5 Stressing of anchors with staggered free lengths
9 Supervision, testing and monitoring
9.1 General
33 9.2 Measurement requirements
9.3 Datum load
9.4 Test methods
9.5 Investigation test
34 9.6 Suitability test
9.7 Acceptance test
9.8 Evaluation of the apparent tendon free length
35 9.9 Supervision of construction and testing
9.10 Monitoring
10 Records
36 11 Special requirements
38 Annex A (informative) Examples of testing corrosion protection
39 Figure A.1 — Testing of corrosion protection
40 Annex B (informative) Guidelines for acceptance criteria for viscous corrosion protection compounds and examples of standards for the testing of material properties
Table B.1 — Acceptance criteria for viscous corrosion protection compounds
41 Annex C (informative) Corrosion protection systems for temporary and permanent anchors and typical details for permanent anchor heads
Table C.1 — Examples of corrosion protection systems for temporary anchors
42 Table C.2 — Examples of corrosion protection systems for permanent anchors
43 Figure C.1 – Examples of single and double corrosion protection for a ribbed bar anchor
44 Figure C.2 — Examples of single and double corrosion protection for a strand anchor
45 Figure C.3 – Example of double corrosion protection detail for a strand anchor at the head
46 Figure C.4 – Example of double corrosion protection detail for a bar anchor at the head
47 Annex D (informative) Example of record sheet
49 Annex E (informative) Obligation of the provisions
54 Bibliography

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BS EN 1537:2013
$198.66