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Dry Soil Mixing is a highly effective ground treatment system used to improve the load performance characteristics of soft clays, peats and other weak soils . The process employs the effects of both hydration and the bonding of soil particles to increase the shear strength and reduce the compressibility of the soil mass.
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It consists of boring columns by combining soil with cement or with a mixture of cement and lime, wither in the form of lime wash (wet) or powder (dry). In this case the mixture is hydrated with the water contained in the ground.
This soil treatment is applied to very soft, generally organic soils, such as sea or river mud
As with other soil improvement techniques, its design depends on the prevailing soil conditions, the loads to be applied and the permitted seats, taking into account that the pile works mainly as a shank so that it does not need to be embedded in firm terrain.
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The term mixed-in-place describes the process of mixing the existing soil and a binder slurry in situ. In doing so, structural and/or sealing construction elements like deep excavations/cut-off walls and foundation elements are produced.
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Definition:
The ground is mixed in situ with a cement grout - water. After hardening, there is "a concrete" wall. Stability is ensured by shaped the metal vertical ones
Characteristics:
water and ground reserve
no the ground excavation or very limited
fine fraction (clay, silt) cannot be very large. Better results in sands
Scope of application:
excavations in sandy layers until 6m of depth
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