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EN 12716:2018

(Main)

Execution of special geotechnical work - Jet grouting

Execution of special geotechnical work - Jet grouting

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.

Ausführung von Arbeiten im Spezialtiefbau - Düsenstrahlverfahren

Diese Europäische Norm legt allgemeine Grundsätze für die Ausführung von Düsenstrahlarbeiten fest.
ANMERKUNG   Das Düsenstrahlverfahren unterscheidet sich von den in EN 12715 erfassten Injektionsverfahren.

Exécution des travaux géotechniques spéciaux - Jet-grouting

La présente Norme européenne établit des principes généraux en vue de l’exécution des travaux de     jet-grouting.
NOTE   Il convient de distinguer les procédés d’exécution de jet-grouting des procédés d’injection (« grouting ») couverts par l’EN 12715.

Izvedba posebnih geotehničnih del - Injektiranje pod visokimi pritiski

Ta evropski standard določa splošna načela za izvedbo injektiranja pod visokimi pritiski.
Postopki injektiranja pod visokimi pritiski se razlikujejo od postopkov injektiranja, ki jih obravnava standard EN 12715.

General Information

Status
Published
Publication Date
11-Dec-2018
Withdrawal Date
29-Jun-2019
ICS
93.020 - Earthworks. Excavations. Foundation construction. Underground works
Technical Committee
CEN/TC 288 - Execution of special geotechnical works
Drafting Committee
CEN/TC 288 - Execution of special geotechnical works
Current Stage
9020 - Submission to 2 Year Review Enquiry - Review Enquiry
Start Date
15-Jan-2024
Completion Date
15-Jan-2024
Ref Project
SIST EN 12716:2019 - Execution of special geotechnical work - Jet grouting

Relations

Replaces
EN 12716:2001 - Execution of special geotechnical works - Jet grouting
Effective Date
26-Jun-2013

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Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.WLVNLAusführung von Arbeiten im Spezialtiefbau - DüsenstrahlverfahrenExécution des travaux géotechniques spéciaux - Jet-groutingExecution of special geotechnical work - Jet grouting93.020Zemeljska dela. Izkopavanja. Gradnja temeljev. Dela pod zemljoEarthworks. Excavations. Foundation construction. Underground worksICS:Ta slovenski standard je istoveten z:EN 12716:2018SIST EN 12716:2019en,fr,de01-marec-2019SIST EN 12716:2019SLOVENSKI
STANDARDSIST EN 12716:20021DGRPHãþD



SIST EN 12716:2019



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12716
December
t r s z ICS
{ uä r t r Supersedes EN
s t y s xã t r r sEnglish Version
Execution of special geotechnical work æ Jet grouting Exécution des travaux géotechniques spéciaux æ Jetægrouting
Ausführung von Arbeiten im Spezialtiefbau æ Düsenstrahlverfahren This European Standard was approved by CEN on
t z September
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
9
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s t y s xã t r s z ESIST EN 12716:2019



EN 12716:2018 (E) 2 Contents Page European foreword . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 5 4 Information needed for the execution of the work . 8 4.1 General . 8 4.2 Specific requirements . 8 5 Geotechnical investigation . 10 5.1 General . 10 5.2 Specific Requirements . 10 6 Materials and products . 11 6.1 General . 11 6.2 Cement . 11 6.3 Water . 11 6.4 Bentonite . 12 6.5 Additions . 12 6.6 Admixtures .
...

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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:
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-   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:
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The execution, testing and monitoring of jet grouting work is not covered by this document and is covered by EN 12716.

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This European Standard establishes general principles for the execution of diaphragm walls as either retaining walls or cut-off walls.
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1.1   This European Standard establishes general principles for the execution of bored piles (see 3.2).
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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.
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