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BS EN 14679 EN 14679 Execution of special geotechnical works. In-Situ Soil Mixing

Source:
CEN
Committee:
B/526 - Geotechnics
Categories:
Earthworks. Excavations. Foundation construction. Underground works
Comment period start date:
Comment period end date:
Number of comments:
0

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Scope

This document specifies general principles for the execution, supervision, inspection, testing and monitoring 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 soil mixing 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 standard does not apply to shallow soil stabilization, which consists of granulating the surface soil and mixing it with binder using soil stabilizing machines to improve soil performance as an alternative to soil replacement, typically in road works.

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