TUBEX pilesDifferences of TUBEX piles are:
The technique of TUBEX piles production is the following: The steel screw point is welded to the starting section of the steel tube forming together with it the pilot pile part. The pilot pile part is immersed into the soil foundation due to simultaneous pressing and screwing. In order to form the pile of a certain length the pilot pile part is consistently built-up by welding the tube sections one- to- one. The foundation soil is moved apart equally in radial directions, compressed all over the depth and increasing the bearing capacity of the pile in the soil. After the bottom penetration of the pile heel to the project given mark, the reinforcing cage is hung in the upper part of the cavity and then the cavity is filled with the plastic concrete. The difference of the TUBEX injected piles is that during submergence of the tube, water-cement mixture is put through the special pipe inside the tube and coming out to external hole in the point. This mixture, first, is greasing the external surface of the tube and surrounding soil, which makes easier the passing through it, and, second, is forming the widening lower part of the pile of a certain height. Advantages of TUBEX piles:
TUBEX piles, in spite of their higher price, like FUNDEX piles, are widely used abroad, especially in construction of transport structures and plant external pipelines. Unfortunately, in Russia this type of piles is not demanded yet. |
||