What is the pile foundation treatment

When the silt layer is thicker and it is difficult to carry out the deep treatment in large area, the pile foundation treatment can be adopted to reinforce the soil. And the pile foundation treatment is various, early in the use of cement mixing pile, sand pile, while is rarely used now. First, the water cement ratio of the cement and soil mixing pile, the amount of slurry and the times of mixing, the management automation system is not perfect, and the equipment is outdated, backward technology, there are problems of poor homogeneity of mixing and unstable quality of pile forming; Second is sand gravel pile used to reinforce the deep silt soft soil foundation. Because of the long construction period and the large deformation after treatment, it is no longer used as the foundation treatment for the deformation; Third is the civil construction has banned wood pile foundation.

Reinforced concrete precast pile is widely used at present because of its strong bearing capacity, low investment, high quality, fast construction speed and so on. For example, a sluice, the geological condition is covered with a layer of 10m thick silt soil foundation, the foundation treatment uses the reinforced concrete precast square pile which side length is 250mm, compacted soil and silt by friction bearing, precast reinforced concrete pile has anti sluice water pressure reached the level of horizontal load and stability.

Thick layer of silt foundation treatment can also use the cast-in-place pile applied to the hard soil layer as the loading platform, the cast-in-place pile is divided into immersed tube cast-in-place pile and punched cast-in-place pile, but two methods above there exist some technical problems. First, the cast-in-place pile in the deep soft soil, there is the problem of the integrity of the pile; Second, there is the problem of mud contamination in the cast-in-place bored pile, the concrete pouring quality of the pile body, the sediment cleaning at the pile bottom and the judgment of the bearing layer are difficult to monitor.

So, what can PARFECT do ?

The PARFECT in situ soil mixing equipment is mainly used for shallow soil mixing of soft soil layer, clay, sludge, peat and polluted soil. The in situ soil mixing equipment is mainly a excavator mounted soil mixer (0-9 meters deep), mixing the soft soil with the soil binder, thus changing the geological structure, enhancing soil stability, and forming a stable and solidified foundation.


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