About CEN
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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Project
| Reference | prEN 14731 rev |
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| Title | Execution of special geotechnical works - Ground treatment by deep vibration |
| Work Item Number | 00288029 |
| Abstract/Scope | This document establishes general principles for the execution of soil treatment by deep vibration. The following types of treatment are covered by this European Standard: - deep vibratory compaction to densify the soils; - vibrated columns formed by inserted granular material laterally/radially compacted against the surrounding soils to form a stiff composite column-soil structure (vibrated compacted granular columns); - vibrated columns formed by inserted material developing unconfined compressive strength comprising a composite of binder and granular material (rigid columns). The following treatment methods are covered by this European Standard: - methods in which depth vibrators, containing oscillating weights which cause horizontal vibrations, are inserted into the soil; - methods in which compaction probes are inserted into the soil using a vibrator which remains at the ground surface and which oscillates in a vertical mode. Treatment methods are outlined in Annexes A and B. The following treatment methods, among others, are not included in this European Standard: - dynamic compaction, dynamic replacement and other methods in which some form of treatment is applied to the ground surface; - uncompacted granular columns primarily used as drains; - explosive compaction. |
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Implementation Dates
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Relations
| Supersedes | EN 14731:2005 |
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(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved
(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat
(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level
(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement
(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn
(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.
In the case of undated standard, a link to the last dated version is provided.
In the case of series, a link to each standard identified in the series is provided.
We also invite you to check (via the website) whether corrigenda and/or amendments shall be read in conjunction with the main standard.