The European Committee for Standardization is one of three European Standardization Organizations (together with CENELEC and ETSI) that have been officially recognized by the European Union and by the European Free Trade Association (EFTA) as being responsible for developing and defining voluntary standards at European level.
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Reference | EN 14199:2015 |
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Title | Execution of special geotechnical works - Micropiles |
Work Item Number | 00288020 |
Abstract/Scope | 1.1 This 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 1 This European Standard is not applicable to driven piles, the execution of which is governed by EN 12699. NOTE 2 For a definition of shaft diameter see 3.3. 1.2 Micropiles 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. 1.3 Other than practical considerations, there are no limitations regarding, length, inclination (definition of inclination, see Figure 5), slenderness ratio or shaft and base enlargements. 1.4 The provisions of this European Standard apply to (see Figure 6): - single micropiles; - micropile groups; - reticulated micropiles; - micropile walls. 1.5 The material of micropiles covered by this European Standard can be: - steel or other reinforcement materials; - grout, mortar or concrete; - a combination of above. 1.6 Micropiles 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. 1.7 Deep 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. |
Status |
Published
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Reference Document | |
date of Availability (DAV) | 2015-05-20 |
ICS | 93.020 - Earthworks. Excavations. Foundation construction. Underground works |
A-Deviation(s) | |
Special National Condition(s) |
Directive(s) | |
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Mandate(s) | |
Citation in OJEU |
date of Ratification (DOR) (1) | 2015-03-12 |
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date of Availability (DAV) (2) | 2015-05-20 |
date of Announcement (DOA) (3) | 2015-08-31 |
date of Publication (DOP) (4) | 2015-11-30 |
date of Withdrawal (DOW) (5) | 2015-11-30 |
Supersedes | EN 14199:2005 |
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Superseded by |
prEN 14199 rev
prEN 14199 rev |
Normative reference (6) |
EN 10025 series
EN 10080 EN 10210 series EN 10219 series EN 1090-2 EN 12390-3 EN 1536:2010
EN 16228 series
EN 1990 EN 1991 series EN 1991-1 series EN 1992-1-1 EN 1993 series EN 1993-1 series EN 1993-3 series EN 1993-4 series EN 1994-1-1 EN 1997-1:2004
EN 1997-2
EN 206:2013
EN 445
EN 447:2007 EN 934-2 EN ISO 11960 EN ISO 14341 EN ISO 15609-1 EN ISO 15630-3 EN ISO 17632 EN ISO 17660-1 EN ISO 18276 EN ISO 2560 EN ISO 4063 EN ISO 5817 EN ISO 9692-1 EN ISO 9692-2 FprEN 10138-4
prEN ISO 22477-1
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Sales Points |
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