iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
CEN

EN 15237:2007

(Main)

Execution of special geotechnical works - Vertical drainage

Execution of special geotechnical works - Vertical drainage

This European Standard establishes general principles for the execution, testing, supervision and monitoring of vertical drain projects.
This European Standard includes the application of prefabricated vertical drains and sand drains and deals with requirements to be placed on design, drain material and installation methods. This European Standard applies to the improvement of low-permeability, highly compressible soils by vertical drainage and preloading. Information regarding loading (embankment, vacuum or ground water lowering) and preloading is given in informative Annexes A and B.
Vertical drainage is used both in on land and in marine constructions for the following purposes:
   (pre-)consolidation and reduction of post-construction settlements;
   speeding up the consolidation process by decreasing the path lengths for pore water dissipation;
   increase of stability (by increasing effective stresses in the soil);
   groundwater lowering;
   mitigation of liquefaction effects.
In each case there is an overall treatment of the soil (the volume of the drains is small in relation to the soil volume treated).
This European Standard does not include soil improvement by means of wells, gravel and stone columns, large-diameter geotextile enclosed columns or reinforcing elements.
Vertical drainage can also be combined with other foundation or ground improvement methods, e.g. electro osmosis, piles and compacted sand piles, dynamic compaction and deep mixing.
Guidance on practical aspects of vertical drainage, such as investigation of drain properties, execution procedures and equipment, is given in Annex A. Investigation of soil characteristics and assessment of design parameters, which are affected by drain properties and execution, are presented in Annex B.

Ausführung von besonderen geotechnischen Arbeiten (Spezialtiefbau) - Vertikaldräns

Diese Europäische Norm legt die allgemeinen Grundsätze für die Ausführung, Prüfung, Bauaufsicht und Überwachung von Projekten für Vertikaldräns fest.
Diese Europäische Norm umfasst die Anwendung vorgefertigter Vertikaldräns und Sanddräns und behandelt Anforderungen an Bemessung, Dränmaterialien sowie an Einbauverfahren. Diese Europäische Norm ist auf die Verbesserung schwach durchlässiger, stark komprimierbarer Böden durch Vertikaldränung und Vorbe¬lastung anwendbar. Informationen bezüglich der Belastung (Damm, Vakuum oder Grundwasserabsenkung) und der Vorbelastung sind in den informativen Anhängen A und B angegeben.
Die Vertikaldränung wird sowohl bei Bauwerken an Land als auch bei Meeres- bzw. Seebauwerken angewendet, wobei folgende Zwecke verfolgt werden:
   (Vor )Konsolidierung und Verringerung von Setzungen nach dem Errichten des Bauwerkes;
   Beschleunigen des Konsolidationsprozesses durch Verringerung der Pfadlängen für den Porenwasser¬abfluss;
   Erhöhung der Standsicherheit/Stabilität (durch Erhöhung der wirksamen Spannungen im Boden);
   Grundwasserabsenkung;
   Abschwächen von Verflüssigungswirkungen.
                In jedem Fall findet eine Gesamtbehandlung des Bodens statt (das Volumen der Dräns ist im Verhältnis zum behandelten Bodenvolumen gering).
Diese Europäische Norm behandelt nicht die Verbesserung des Bodens mit Hilfe von Brunnen, Kies  und Steinsäulen, geotextilumschlossenen Säulen mit großem Durchmesser oder Bewehrungselementen.
Die Vertikaldränung kann auch mit weiteren Gründungs  oder Bodenverbesserungsverfahren, wie z. B. Elektro Osmose, Pfähle und verdichtete Sandpfähle, Fallplattenverdichtung und tiefreichende Bodenstabili¬sierung, kombiniert werden.

Exécution des travaux géotechniques spéciaux - Drains verticaux

La présente Norme européenne établit les principes généraux pour l'exécution, les essais de contrôle, la surveillance et le suivi des travaux de réseaux de drains verticaux.
Cette Norme européenne couvre aussi bien les travaux réalisés avec des drains préfabriqués que ceux réalisés avec des drains de sable et elle traite des exigences pour la conception des travaux, les matériaux constitutifs des drains, et les méthodes de mise en place. La présente norme s’applique aux travaux d’amélioration des sols de faible perméabilité et fortement compressibles, par pré-chargement du terrain associé à un réseau de drains verticaux. Des indications relatives au chargement d’un terrain (avec un remblai, par consolidation atmosphérique ou par rabattement de la nappe) sont données dans les Annexes informatives A et B.
Les techniques d’amélioration des massifs de sol avec des réseaux de drains verticaux sont utilisées aussi bien pour les projets en site terrestre que pour les projets en conditions maritimes dans les buts suivants :
   (pré-)consolider un massif au droit d’un futur ouvrage pour réduire les tassements après sa construction ;
   accélérer le processus de consolidation d'un massif, c’est à dire le processus de dissipation des pressions interstitielles à l’intérieur de celui-ci, en réduisant le trajet d’écoulement des eaux ;
   améliorer la résistance d'un massif (en augmentant les contraintes effectives dans celui-ci) ;
   rabattre le niveau d'une nappe ;
   réduire le potentiel de liquéfaction d'un massif.
Pour toutes ces applications, un traitement d’ensemble du massif est réalisé (le volume des drains est faible par rapport au volume de sol traité).
La présente Norme européenne ne couvre pas l'amélioration des massifs de sol au moyen de puits, de colonnes ballastées, de colonnes de sable de grand diamètre dans une gaine géotextile ou d’inclusions rigides.

Izvedba posebnih geotehničnih del - Navpično odvodnjavanje

General Information

Status
Published
Publication Date
27-Feb-2007
Withdrawal Date
30-Aug-2007
ICS
93.020 - Earthworks. Excavations. Foundation construction. Underground works
Technical Committee
CEN/TC 288 - Execution of special geotechnical works
Drafting Committee
CEN/TC 288/WG 11 - Vertical drains
Current Stage
9060 - Closure of 2 Year Review Enquiry - Review Enquiry
Start Date
03-Mar-2024
Completion Date
03-Mar-2024
Ref Project
SIST EN 15237:2007 - Execution of special geotechnical works - Vertical drainage

Buy Standard

EN 15237:2007EN 15237:2007
PreviousNext
Standard
EN 15237:2007
English language
57 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Execution of special geotechnical works - Vertical drainageExécution des travaux géotechniques spéciaux - Drains verticauxAusführung von besonderen geotechnischen Arbeiten (Spezialtiefbau) - VertikaldränsTa slovenski standard je istoveten z:EN 15237:2007SIST EN 15237:2007en;fr;de93.020Zemeljska dela. Izkopavanja. Gradnja temeljev. Dela pod zemljoEarthworks. Excavations. Foundation construction. Underground worksICS:SLOVENSKI
STANDARDSIST EN 15237:200701-julij-2007







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15237February 2007ICS 93.020 English VersionExecution of special geotechnical works - Vertical drainageExécution des travaux géotechniques spéciaux - DrainsverticauxAusführung von besonderen geotechnischen Arbeiten(Spezialtiefbau) - VertikaldränsThis European Standard was approved by CEN on 7 January 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15237:2007: E



EN 15237:2007 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.5 4 Information needed for the execution of the work.7 5 Geotechnical investigations.8 5.1 General.8 5.2 Specific requirements.8 6 Materials and product.9 6.1 General.9 6.2 Raw materials of prefabricated drains.9 6.3 Band drains.9 6.4 Prefabricated cylindrical drain.13 6.5 Sand drains.15 7 Considerations related to design.15 7.1 Field trials.15 8 Execution.15 8.1 Method statement.15 8.2 Preparation of the site.
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

CEN
EN 12715:2020(Main)
Execution of special geotechnical work - Grouting
SIST EN 12715:2021

This document is applicable to the execution, testing and monitoring of geotechnical grouting work.
Grouting for geotechnical purposes (geotechnical grouting) is a process in which the remote placement of a pumpable material in the ground is indirectly controlled by adjusting its rheological characteristics and by the manipulation of the placement parameters (pressure, volume and the flow rate).
The following principles and methods of geotechnical grouting are covered by this document:
-   displacement grouting (compaction and compensation grouting);
-   grouting without displacement of the host material (permeation, fissure/contact grouting, bulk filling).
Figure 1 illustrates the various injection methods associated with these two principles.
NOTE   The term consolidation grouting is sometimes used to emphasize an improvement in the strength or deformation characteristics of a soil or rock mass, with the aim that it does not undergo any unacceptable deformation. The term compensation grouting is used when the objective of grouting is to concurrently compensate for ground loss.
The principal objectives of geotechnical grouting are:
-   the modification of the hydraulic/hydrogeological characteristics of the ground;
-   the modification of the mechanical properties of the ground;
-   the filling of natural cavities, mine workings, voids adjacent to structures;
-   inducing displacement to compensate for ground loss or to stabilize and lift footings, slabs and pavements.
Specialized grouting activities, generally associated with structural and/or emergency works, are not covered by this document.
The execution, testing and monitoring of jet grouting work is not covered by this document and is covered by EN 12716.

  • Standard
    51 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12716:2018(Main)
Execution of special geotechnical work - Jet grouting
SIST EN 12716:2019

This document establishes general principles for the execution of jet grouting works.
NOTE   The jet grouting processes is distinguished from the grouting processes covered by EN 12715.

  • Standard
    37 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 1538:2010+A1:2015(Main)
Execution of special geotechnical work - Diaphragm walls
SIST EN 1538:2011+A1:2015

This European Standard establishes general principles for the execution of diaphragm walls as either retaining walls or cut-off walls.
NOTE 1   This standard covers only structures constructed in a trench excavated with a support fluid or in dry conditions, where soil is removed and replaced by concrete or slurry and with wall thickness B ≥ 40 cm.
NOTE 2   Diaphragm walls can be permanent or temporary structures.
NOTE 3   The following types of structure are considered:
a)   retaining walls: usually constructed to support the sides of an excavation in the ground. They include:
1)   cast in situ concrete diaphragm walls;
2)   precast concrete diaphragm walls;
3)   reinforced slurry walls;
b)   cut-off walls: usually constructed to prevent migration of groundwater, clear or polluted, or of other contaminants present in the ground. They include:
1)   slurry walls (possibly with membranes or sheet piles);
2)   plastic concrete walls.
NOTE 4   Walls formed shallow vertical trenches (typically excavations with a ratio of depth over thickness D/B < 5 or D < 5 m) are not covered by this standard.

  • Standard
    47 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 1536:2010+A1:2015(Main)
Execution of special geotechnical work - Bored piles
SIST EN 1536:2011+A1:2015

1.1   This European Standard establishes general principles for the execution of bored piles (see 3.2).
NOTE 1   This standard covers piles or barrettes which are formed in the ground by excavation and are structural members used to transfer actions and/or limit deformations.
NOTE 2   This standard covers piles with circular cross-section (see Figures 1 and A.1a)) and barrettes (see 3.3) with rectangular, T or L or any other similar cross-section (see Figure 2) concreted in a single operation.
NOTE 3   In the standard the term pile is used for circular cross-section structure and the term barrette for other shapes. Both are bored piles.
1.2    This European Standard applies to bored piles (see Figure 3) with:
-   uniform cross-section (straight shaft);
-   telescopically changing shaft dimensions;
-   excavated base enlargements; or
-   excavated shaft enlargements.
NOTE    The shape of a pile base and of an enlargement depends on the tool used for the excavation.
1.3    This European Standard applies (see Note) to:
-   bored piles with a depth to width ratio  5;
-   piles (see Figures 1 and 3) with a shaft diameter 0,3 m  D  3,0 m;
-   barrettes (see Figure 2) with the least dimension Wi  0,4 m, a ratio LBiB / Wi between its largest and its least dimensions  6 and a cross-sectional area A  15 m²;
-   piles with circular precast elements used as structural member (see Figure 7) with a least dimension DP  0,3 m;
-   barrettes with rectangular precast elements used as structural member with a least dimension WP  0,3 m.
NOTE   The standard covers a large range of diameters. For small diameter bored piles less than 450 mm, the general specification can be adapted to cater for the lack of space (e.g. minimum bars number and spacing).
1.4    This European Standard applies to piles with the following rake (see Figure 4):
-   n  4 (  76°);
-   n  3 (  72°) for permanently cased piles.
(...)

  • Standard
    82 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 14199:2015(Main)
Execution of special geotechnical works - Micropiles
SIST EN 14199:2015

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.

  • Standard
    62 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12699:2015(Main)
Execution of special geotechnical works - Displacement piles
SIST EN 12699:2015

1.1   This European Standard establishes general principles for the execution of displacement piles, that means piles which are installed in the ground without excavation or removal of material from the ground except for limiting heave and/or limiting vibration as well as removal of obstructions or to assist penetration.
Piles are driven into the ground using impact, vibration, pressing, screwing or a combination of these methods.
1.2   The material of displacement piles covered by this European Standard can be:
-   steel;
-   cast iron;
-   concrete, mortar;
-   timber;
-   grout;
-   combination of above.
1.3   This European Standard covers prefabricated, cast in situ, or a combination of these methods to form displacement piles of regular shape.
Examples are given in Figure A.2 and Figure A.3.
1.4   Displacement piles may be installed in soils enhanced by ground improvement techniques. The ground improvement can be executed before, at the same time or after installation of the piles.
1.5   Other than practical considerations there are for the purpose of this European Standard no limitations regarding cross section dimensions, shaft or base enlargements, length or rake.
1.6   The provisions of this European Standard apply to:
-   single piles;
-   pile groups;
-   concrete sheet piles.
1.7   Columns constructed by ground improvement techniques (such as mixed in situ columns, jet grouting, compaction grouting, vibro flotation, stone columns) are not covered by this European Standard. Bored piles are covered in EN 1536. Steel and timber sheet pile walls are covered in EN 12063. Micropiles are covered in EN 14199.

  • Standard
    69 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 1537:2013(Main)
Execution of special geotechnical works - Ground anchors
SIST EN 1537:2013

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.

  • Standard
    52 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 14490:2010(Main)
Execution of special geotechnical works - Soil nailing
SIST EN 14490:2010

1.1   This European Standard establishes general principles for the execution, testing, supervision and monitoring of soil nailing.
1.2   Soil nailing is a construction technique, used to enhance/maintain the stability of a soil mass by installation of reinforcing elements (soil nails). Typical examples of soil nailing are given in Annex A.
1.3   The scope of soil nailing applications considered in this European Standard includes the installation and testing of soil nails and associated operations, required when stabilising existing and newly cut slopes and faces in soil, existing earth retaining structures, embankments, existing tunnels and the excavated facing of new tunnels in soil.
1.4   Soil nailing may be used to form part of a hybrid construction. This European Standard is relevant only to the soil nailing aspect of such constructions.
1.5   Techniques, such as reinforcement of ground by vertical inclusions (sheet piles, bored or driven piles, or other elements) and stabilisation with rock bolts, prestressed ground anchors or tensions piles are not covered by this European Standard.
1.6   Guidance on practical aspects of soil nailing and aspects on design, durability and testing is given in informative Annexes A, B and C, respectively.

  • Standard
    68 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Standard
    76 pages
    German language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 14475:2006/AC:2006(Corrigendum)
Execution of special geotechnical works - Reinforced fill
SIST EN 14475:2006/AC:2007

TC - Modification to 6.3.2.2 and Table A.1

  • Corrigendum
    2 pages
    English and German language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 14679:2005/AC:2006(Corrigendum)
Execution of special geotechnical works - Deep mixing
SIST EN 14679:2005/AC:2007

TC - Various modifications throughout text

  • Corrigendum
    8 pages
    English, French and German language
    sale 10% off
    e-Library read for
    1 day