Filler added slurry and earth and sand excavated by the cutter are stirred to create a liquid state known as SUPER SLURR Y. SUPER SLURRY is highly dense and very viscous in nature due to the mixing of clay and hardening compound. SUPER SLURR Y is also a superior specific gravity liquid (measuring 1.4-1.8).
Leakage of slurry and an unstable driving face usually complica te underground driving
construction in a sandy soil and small stone earth layer enviro nment. However, such problems
can be overcome by THE PRESSURIZED SUPER SLURR Y METHOD, which operates on liquid stabilization Technology. Super Slurry which is most suitable f or wall construction
First, driving pressure and the pressure from the outflow of slu rry cause a permeation of Super Slurry into the driving face. The filler then quickly takes effect to form a solid mud film. Interposing this mud film keeps the pressure to the driving face higher than earth and underwater pressure to an additional 20kN / m2 or more. This pr essure differentiation serves as protection against potential wall collapse and brings stabil ity to the driving face.