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EN 14679:2026

Execution of special geotechnical works - In-Situ Soil Mixing

Edition date: 2026-08-19
In Force
Available languages: English, German
Summary: This document specifies general principles for the execution, supervision, inspection, testing, monitoring and maintenance of in situ soil mixing works (Deep Mixing) carried out by two different methods: dry mixing and wet mixing. Soil mixing considered in this document is limited to methods which involve: - mixing by rotating mechanical mixing tools, including jetting and/or compressed air assistance, where the lateral support provided by the surrounding ground is not removed; - different shapes and configurations of soilmix elements, either columns, panels, walls or any combination of more than one single element, with or without overlapping; - treatment of soils and fills, including brownfields, sludges, etc., with possible limited penetration into the rock; - mass mixing; - environmental mixing, involving installation of containment and permeable reactive barriers and solidification/stabilization of contaminated soils and sludges. This document does not apply to shallow soil stabilization, which consists of granulating the surface soil and mixing it with binder using stabilizing machines to improve performance. Shallow soil stabilization is in the scope of EN 16907-4.

Le présent document spécifie les principes généraux relatifs à l'exécution, à la supervision, à l'inspection, aux essais, à la surveillance et à la maintenance des travaux de malaxage des sols en place réalisés selon la méthode de malaxage par voie sèche ou selon la méthode de malaxage par voie humide. Les malaxages des sols concernés par le présent document sont limités aux méthodes qui impliquent : — le mélange effectué au moyen d'outils rotatifs de malaxage mécanique, y compris l'assistance par jets de fluide sous pression et/ou par air comprimé, le terrain environnant latéral confinant l'opération pendant son déroulement ; — la réalisation de différentes formes et configurations d'éléments de sol traité, qu'il s'agisse de colonnes, de panneaux, de parois ou de toute autre combinaison d'au moins deux éléments simples, avec ou sans remordu ; — le traitement des sols et des remblais, y compris ceux des friches industrielles, des boues, etc., avec une possible pénétration limitée dans la roche ; — le malaxage en masse ; — le malaxage à but environnemental, impliquant l'installation de barrières de confinement et de barrières perméables réactives, ainsi que la solidification/stabilisation des sols et de boues contaminés. Le présent document ne s'applique pas à la stabilisation superficielle des sols qui consiste à broyer le sol de surface et à le mélanger à un liant à l'aide de stabilisatrice de surface afin d'en améliorer les performances. La stabilisation superficielle des sols entre dans le domaine d’application de l’EN 16907-4.

Dieses Dokument legt allgemeine Grundsätze für die Ausführung, Bauüberwachung, Inspektion, Prüfung, Kontrolle und Wartung der in-situ Bodenmischarbeiten (tiefreichende Bodenstabilisierung) fest, wobei zwischen zwei verschiedenen Verfahren unterschieden wird: dem Trockenmischverfahren und dem Nassmischverfahren. Das Bodenmischverfahren nach diesem Dokument ist auf Verfahren und Bodenmischelemente mit folgenden Merkmalen beschränkt: - Mischung mit rotierenden mechanischen Mischwerkzeugen, gegebenenfalls unterstützt durch Düsenstrahlen und/oder Druckluft, soweit die horizontale Stützung durch den umgebenden Boden nicht verloren geht; - unterschiedliche Geometrien und Anordnungen von Bodenmischelementen, bestehend aus einzelnen Säulen, Mehrfachelementen, Wänden oder Kombinationen von mehr als einem Einzelelement, überschnitten oder nicht überschnitten; - Behandlung von Böden und Auffüllungen, einschließlich Müllablagerungen, Schlämmen usw., mit begrenzt machbarem Einbringen in Fels; - Massenmischverfahren; - Umwelttechnisches Bodenmischen, einschließlich des Erstellens von absperrenden und durchlässigen reaktiven Barrieren sowie der Verfestigung/Stabilisierung von kontaminierten Böden und Schlämmen. Dieses Dokument gilt nicht für die gerätetechnisch ausgeführte qualitätsverbessernde oberflächliche Bodenstabilisierung, bei der der Boden an der Oberfläche aufgebrochen und mit Bindemitteln vermischt wird. Diese oberflächliche Bodenstabilisierung fällt in den Anwendungsbereich der EN 16907-4.
ICS: 93.020-Earthworks. Excavations. Foundation construction.
CTN: CEN/TC 288 - 6269

Reemplazo Normas

Reemplaza a EN 14679:2005/AC:2006

Reemplaza a EN 14679:2005

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