Cost effective continuous walls, and a lot more!
The Trenchmix® process is a very effective solution for cut-off walls but can also have many other uses. Find out more about Soletanche Bachy Deep Soil Mixing offer.
Trenchmix® is a Deep Soil Mixing process that produces continuous trenches of soil mixed in situ with a binding agent.
This binding agent can simply be cement, or a blend of cement with other products such as lime, fly ash or slag.
Soil-cement mix trenches are created using a specially adapted trenching machine designed to:
- Extract very little volume of in situ soil
- Be capable of incorporating the binder by dry or wet method
- Mix the soil in-situ with the binder on full height of the blade.
The Trenchmix® process creates in-situ continuous walls that may be described as lineic (viewed from above) or surfacic (viewed in elevation). When used alone, a continuous Trenchmix® wall can be used for cut-off application. Once structurally reinforced, a Trenchmix® wall can form a retaining structure which can be used as support of excavation. When used as a network of parallel or secant trenches, Trenchmix® walls can be used for soil improvement applications.
The soil-cement mixture can achieve an average compressive strength of around 3 MPa and hydraulic permeability valuesbelow 10-6 cm/s.
Wall thickness corresponds to the width of the blade used: between 350 mm and 500mm
Wall depth is governed by blade length.