ДСТУ EN 14199:2022 Виконання спеціальних геотехнічних робіт. Мікропалі (EN 14199:2015, IDT)

ДСТУ EN 14199:2022
(EN 14199:2015, IDT)

Виконання спеціальних геотехнічних робіт. Мікропалі

 
 
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

1 Scope

2 Normative references

3 Terms and definitions

4 Information needed for the execution of the works

4.1 General

4.2 Special features

4.3 List of activities

5 Geotechnical investigation

5.1 General

5.2 Specific requirements

6 Materials and products

6.1 General

6.2 Reinforcement and load bearing elements

6.3 Materials for grout, mortar and concrete

6.4 Grout

6.5 Mortar and concrete

6.6 Spacers, centralisers and other components

6.7 Coatings and corrosion protection compounds

7 Considerations related to design

7.1 General

7.2 Geometrical construction tolerances

7.3 Installation

7.4 Reinforcement and load bearing elements

7.5 Connecting elements

7.6 Corrosion protection of steel elements

7.7 Spacers and centralisers

7.8 Micropile enlargement

7.9 Connections to the superstructure

7.10 Spacing of micropiles

7.11 Special requirements for micropiles

8 Execution

8.1 General

8.2 Construction tolerances

8.3 Site preparation

8.4 Sequence of installation

8.5 Drilling

8.6 Enlargements

8.7 Reinforcement and load bearing elements

8.8 Filling and grouting

8.9 Concreting

8.10 Trimming of micropiles

9 Supervision, monitoring and testing

9.1 Supervision

9.2 Monitoring of micropile construction

9.3 Micropile testing

10 Records

10.1 General

10.2 Records for the execution of construction micropiles

10.3 Records for micropile tests

11 Special requirements

Annex A (informative) Execution methods of micropiles

Annex B (informative) Guidance on minimum cover (in mm) for bearing element of low strength steel for cast in situ micropiles

Annex C (informative) Borehole testing and pregrouting

Annex D (informative) Guideline for a record for micropiles

Annex E (informative) Degree of obligation of the provisions

Bibliography