As a solution for the construction of a long, continuous retaining wall - its main area of application - the cutter soil mix wall (CSM wall) consists of adjacent or intersecting parallelepipedic panels. The panels are formed by intensive, in situ mechanical mixing of soil with a continuously injected hydraulic binding agent, usually cement. The retention function of the mixed soil CSM wall is induced by the development of arching after curing of the « soil-binder » mixture in between the steel profiles, inserted into the freshly mixed wall panels.
n accordance with the requirements of standard prEN 14679: “Deep Mixing”
1. In advance excavation of a guide trench approximately 0.5 m deep to accommodate the mix of soil and cementitious binder. Positioning of the cutter soil cutting-mixing head
2. Drilling to a depth of approximately 1 m and controlling the verticality
3. Fracturing of soil during driving of the cutting tool and simultaneous injection of a mix of water and a cement-based binder.
4. After reaching the design depth and during the extraction of the cutting-mixing head, blending and homogenization of the soil with the injected cement grout / slurry. Depending on the nature of the soil, the panel will be mixed once again.
5. Insertion of the reinforcement (steel profiles) in the fresh soil-cement mixture.
6. By repeating the procedure, the formation of the CSM wall progresses by intersecting the previously made panel.
Possibility of real-time electronic monitoring of the construction parameters ensuring optimum quality control.