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Project
| Reference | EN 12715:2020 |
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| Title | Execution of special geotechnical work - Grouting |
| Work Item Number | 00288024 |
| Abstract/Scope | 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. |
| Status |
Published
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| Reference Document | |
| date of Availability (DAV) | 2020-11-18 |
| ICS | 93.020 - Earthworks. Excavations. Foundation construction. Underground works |
| A-Deviation(s) | |
| Special National Condition(s) |
Legal
| Directive(s) | |
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| Mandate(s) | |
| Citation in OJEU |
Implementation Dates
| date of Ratification (DOR) (1) | 2020-09-14 |
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| date of Availability (DAV) (2) | 2020-11-18 |
| date of Announcement (DOA) (3) | 2021-02-28 |
| date of Publication (DOP) (4) | 2021-05-31 |
| date of Withdrawal (DOW) (5) | 2021-05-31 |
Relations
| Supersedes | EN 12715:2000 |
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| Superseded by | |
| Normative reference (6) |
EN 16228-6
EN 197-1 EN 197-2 EN 1997-1 EN 1997-2 EN 480-1 EN 480-10 EN 480-11 EN 480-12 EN 480-2 EN 480-4 EN 480-5 EN 480-6 EN 480-8 EN 934-1 EN 934-3+A1 EN 934-4 EN 934-6 EN ISO 22282 series |
| Sales Points |
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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
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