• EN 14199:2015

    Current The latest, up-to-date edition.

    Execution of special geotechnical works - Micropiles

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    Published date:  20-05-2015

    Publisher:  Comite Europeen de Normalisation

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Information needed for the execution of the works
    5 Geotechnical investigation
    6 Materials and products
    7 Considerations related to design
    8 Execution
    9 Supervision, monitoring and testing
    10 Records
    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

    Abstract - (Show below) - (Hide below)

    1.1This European Standard establishes general principles for the execution of micropiles.They are for drilled piles constructed using a drilling tool with a diameter less than 300 mm.NOTE 1This European Standard is not applicable to driven piles, the execution of which is governed by EN 12699.NOTE 2For a definition of shaft diameter see 3.3.1.2Micropiles are structural members to transfer actions to the ground and can contain bearing elements to transfer directly or indirectly loads and or to limit deformations. For examples of micropiles see Figure 1, Figure 2 and Figure 3. Their shaft and base resistance can be improved (mostly by grouting) and they can be constructed with (see Figure 4):-uniform cross section (straight shaft); or-telescopically changing shaft dimensions;-shaft enlargements; and/or-base enlargement.1.3Other than practical considerations, there are no limitations regarding, length, inclination (definition of inclination, see Figure 5), slenderness ratio or shaft and base enlargements.1.4The provisions of this European Standard apply to (see Figure 6):-single micropiles;-micropile groups;-reticulated micropiles;-micropile walls.1.5The material of micropiles covered by this European Standard can be:-steel or other reinforcement materials;-grout, mortar or concrete;-a combination of above.1.6Micropiles can be used for:-working under restricted access and/or headroom conditions;-foundations of new structures (particularly in very heterogeneous soil or rock formations);-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.1.7Deep mixing columns according to EN 14679 are not included in this European Standard. Columns constructed by jet grouting are covered by EN 12716. Ground anchors are covered by EN 1537.

    General Product Information - (Show below) - (Hide below)

    Committee CEN/TC 288
    Development Note Supersedes PREN 14199. (05/2015)
    Document Type Standard
    Publisher Comite Europeen de Normalisation
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    I.S. EN 1993-5:2007 EUROCODE 3 - DESIGN OF STEEL STRUCTURES - PART 5: PILING (INCLUDING IRISH NATIONAL ANNEX)
    BS EN 14490:2010 Execution of special geotechnical works. Soil nailing
    UNE-EN 1997-1:2016 Eurocode 7: Geotechnical design - Part 1: General rules.
    BS EN 206 : 2013 CONCRETE - SPECIFICATION, PERFORMANCE, PRODUCTION AND CONFORMITY
    BS EN 12699:2015 Execution of special geotechnical works. Displacement piles
    BS EN 1993-5:2007 Eurocode 3. Design of steel structures Piling
    I.S. EN 12699:2015 EXECUTION OF SPECIAL GEOTECHNICAL WORKS - DISPLACEMENT PILES
    PREN 1090-2 : DRAFT 2015 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 2: TECHNICAL REQUIREMENTS FOR STEEL STRUCTURES
    PREN 13107 : DRAFT 2013 SAFETY REQUIREMENTS FOR CABLEWAY INSTALLATIONS DESIGNED TO CARRY PERSONS - CIVIL ENGINEERING WORKS
    DIN EN 12699:2015-07 EXECUTION OF SPECIAL GEOTECHNICAL WORKS - DISPLACEMENT PILES
    DIN EN 13107:2015-09 SAFETY REQUIREMENTS FOR CABLEWAY INSTALLATIONS DESIGNED TO CARRY PERSONS - CIVIL ENGINEERING WORKS
    NF EN 1993-5 : 2007 EUROCODE 3: DESIGN OF STEEL STRUCTURES - PART 5: PILING
    I.S. EN 13107:2015 SAFETY REQUIREMENTS FOR CABLEWAY INSTALLATIONS DESIGNED TO CARRY PERSONS - CIVIL ENGINEERING WORKS
    I.S. EN 1997-1:2005 EUROCODE 7: GEOTECHNICAL DESIGN - PART 1: GENERAL RULES
    13/30275585 DC : 0 BS EN 13107 - SAFETY REQUIREMENTS FOR CABLEWAY INSTALLATIONS DESIGNED TO CARRY PERSONS - CIVIL ENGINEERING WORKS
    DIN EN 206:2014-07 CONCRETE - SPECIFICATION, PERFORMANCE, PRODUCTION AND CONFORMITY
    I.S. EN ISO 22477-4:2018 GEOTECHNICAL INVESTIGATION AND TESTING - TESTING OF GEOTECHNICAL STRUCTURES - PART 4: TESTING OF PILES: DYNAMIC LOAD TESTING (ISO 22477-4:2018)
    EN ISO 22477-4:2018 Geotechnical investigation and testing - Testing of geotechnical structures - Part 4: Testing of piles: dynamic load testing (ISO 22477-4:2018)
    DIN EN 1997-1:2014-03 EUROCODE 7: GEOTECHNICAL DESIGN - PART 1: GENERAL RULES
    EN 1993-5:2007/AC:2009 EUROCODE 3 - DESIGN OF STEEL STRUCTURES - PART 5: PILING
    UNI EN 1993-5 : 2007 EUROCODE 3 - DESIGN OF STEEL STRUCTURES - PART 5: PILING
    UNI EN 1997-1 : 2013 EUROCODE 7: GEOTECHNICAL DESIGN - PART 1: GENERAL RULES
    EN 206:2013+A1:2016 Concrete - Specification, performance, production and conformity
    ISO 22477-4:2018 Geotechnical investigation and testing — Testing of geotechnical structures — Part 4: Testing of piles: dynamic load testing
    DIN EN 14490 E : 2010 EXECUTION OF SPECIAL GEOTECHNICAL WORKS - SOIL NAILING
    UNI EN 14490 : 2010 EXECUTION OF SPECIAL GEOTECHNICAL WORKS - SOIL NAILING
    I.S. EN 14490:2010 EXECUTION OF SPECIAL GEOTECHNICAL WORKS - SOIL NAILING
    BS EN 13107:2015 Safety requirements for cableway installations designed to carry persons. Civil engineering works
    EN 14490:2010 Execution of special geotechnical works - Soil nailing
    EN 1997-1:2004/A1:2013 EUROCODE 7: GEOTECHNICAL DESIGN - PART 1: GENERAL RULES
    DIN EN 14490:2010-11 Execution of special geotechnical works - Soil nailing
    15/30320416 DC : 0 BS EN 1090-2 - EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 2: TECHNICAL REQUIREMENTS FOR STEEL STRUCTURES
    UNE-EN 14490:2013 Execution of special geotechnical works - Soil nailing
    BS EN 1997-1 : 2004 EUROCODE 7: GEOTECHNICAL DESIGN - PART 1: GENERAL RULES
    EN 12699:2015 Execution of special geotechnical works - Displacement piles
    DIN EN 1993-5:2010-12 Eurocode 3: Design of steel structures - Part 5: Piling (includes Corrigendum AC:2009)

    Standards Referencing This Book - (Show below) - (Hide below)

    EN 12390-3:2009/AC:2011 TESTING HARDENED CONCRETE - PART 3: COMPRESSIVE STRENGTH OF TEST SPECIMENS
    EN ISO 9692-1:2013 Welding and allied processes - Types of joint preparation - Part 1: Manual metal arc welding, gas-shielded metal arc welding, gas welding, TIG welding and beam welding of steels (ISO 9692-1:2013)
    ISO 14341:2010 Welding consumables Wire electrodes and weld deposits for gas shielded metal arc welding of non alloy and fine grain steels Classification
    EN ISO 5817:2014 Welding - Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) - Quality levels for imperfections (ISO 5817:2014)
    EN ISO 9692-2:1998/AC:1999 WELDING AND ALLIED PROCESSES - JOINT PREPARATION - PART 2: SUBMERGED ARC WELDING OF STEELS
    EN 12716:2001 EXECUTION OF SPECIAL GEOTECHNICAL WORKS - JET GROUTING
    EN ISO 11960:2014 PETROLEUM AND NATURAL GAS INDUSTRIES - STEEL PIPES FOR USE AS CASING OR TUBING FOR WELLS (ISO 11960:2014)
    ISO 17660-1:2006 Welding — Welding of reinforcing steel — Part 1: Load-bearing welded joints
    EN 1536:2010+A1:2015 Execution of special geotechnical work - Bored piles
    ISO 2560:2009 Welding consumables Covered electrodes for manual metal arc welding of non-alloy and fine grain steels Classification
    EN 1994-1-1:2004/AC:2009 EUROCODE 4: DESIGN OF COMPOSITE STEEL AND CONCRETE STRUCTURES - PART 1-1: GENERAL RULES AND RULES FOR BUILDINGS
    ISO 18276:2017 Welding consumables — Tubular cored electrodes for gas-shielded and non-gas-shielded metal arc welding of high strength steels — Classification
    EN ISO 4063:2010 Welding and allied processes - Nomenclature of processes and reference numbers (ISO 4063:2009, Corrected version 2010-03-01)
    EN ISO 18276:2017 Welding consumables - Tubular cored electrodes for gas-shielded and non-gas-shielded metal arc welding of high strength steels - Classification (ISO 18276:2017)
    EN 10080:2005 Steel for the reinforcement of concrete - Weldable reinforcing steel - General
    EN 445:2007 Grout for prestressing tendons - Test methods
    ISO 5817:2014 Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) — Quality levels for imperfections
    ISO 9692-1:2013 Welding and allied processes — Types of joint preparation — Part 1: Manual metal arc welding, gas-shielded metal arc welding, gas welding, TIG welding and beam welding of steels
    EN ISO 17660-1:2006 Welding - Welding of reinforcing steel - Part 1: Load-bearing welded joints (ISO 17660-1:2006)
    ISO 15609-1:2004 Specification and qualification of welding procedures for metallic materials Welding procedure specification Part 1: Arc welding
    EN ISO 14341:2011 Welding consumables - Wire electrodes and weld deposits for gas shielded metal arc welding of non alloy and fine grain steels - Classification (ISO 14341:2010)
    EN 12620:2002+A1:2008 Aggregates for concrete
    ISO 15630-3:2010 Steel for the reinforcement and prestressing of concrete Test methods Part 3: Prestressing steel
    EN ISO 2560:2009 Welding consumables - Covered electrodes for manual metal arc welding of non-alloy and fine grain steels - Classification (ISO 2560:2009)
    EN 1997-2:2007/AC:2010 EUROCODE 7 - GEOTECHNICAL DESIGN - PART 2: GROUND INVESTIGATION AND TESTING
    EN 14679:2005/AC:2006 EXECUTION OF SPECIAL GEOTECHNICAL WORKS - DEEP MIXING
    ISO 17632:2015 Welding consumables Tubular cored electrodes for gas shielded and non-gas shielded metal arc welding of non-alloy and fine grain steels Classification
    EN 10204:2004 Metallic products - Types of inspection documents
    EN ISO 17632:2015 Welding consumables - Tubular cored electrodes for gas shielded and non-gas shielded metal arc welding of non-alloy and fine grain steels - Classification (ISO 17632:2015)
    EN ISO 15609-1:2004 Specification and qualification of welding procedures for metallic materials - Welding procedure specification - Part 1: Arc welding (ISO 15609-1:2004)
    EN 1090-2:2008+A1:2011 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 2: TECHNICAL REQUIREMENTS FOR STEEL STRUCTURES
    EN 447:2007 Grout for prestressing tendons - Basic requirements
    EN 1997-1:2004/A1:2013 EUROCODE 7: GEOTECHNICAL DESIGN - PART 1: GENERAL RULES
    ISO 9692-2:1998 Welding and allied processes — Joint preparation — Part 2: Submerged arc welding of steels
    PREN 10138-4 : DRAFT 2000 PRESTRESSING STEELS - PART 4: BARS
    EN 1992-1-1:2004/A1:2014 EUROCODE 2: DESIGN OF CONCRETE STRUCTURES - PART 1-1: GENERAL RULES AND RULES FOR BUILDINGS
    ISO 4063:2009 Welding and allied processes — Nomenclature of processes and reference numbers
    EN 1990:2002/A1:2005/AC:2010 EUROCODE - BASIS OF STRUCTURAL DESIGN
    EN 1537:2013 Execution of special geotechnical works - Ground anchors
    EN ISO 15630-3:2010 Steel for the reinforcement and prestressing of concrete - Test methods - Part 3: Prestressing steel (ISO 15630-3:2010)
    EN 12699:2015 Execution of special geotechnical works - Displacement piles
    EN 206:2013+A1:2016 Concrete - Specification, performance, production and conformity
    ISO 11960:2014 Petroleum and natural gas industries Steel pipes for use as casing or tubing for wells
    EN 934-2:2009+A1:2012 Admixtures for concrete, mortar and grout - Part 2: Concrete admixtures - Definitions, requirements, conformity, marking and labelling
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