DE2027231A1 - Reinforced concrete pile - Google Patents

Description

"Reinforced concrete pile tl The disadvantage of using reinforced concrete piles is that they are each in the intended length, according to the driving depth or adapted to it, must be prefabricated. Stepping on the construction site when ramming Depending on the subsoil changes in the driving depth by, for example If it has to be rammed deeper than intended, extraordinary difficulties arise for the pile extension, if an adjustment to the greater driving depth at all is still possible.

The invention has now set itself the task of addressing these disadvantages avoid and make an adjustment of reinforced concrete piles to any deviating To enable ramming depths in a simple and cost-saving manner.

For this purpose the shaft of a reinforced concrete pile is in the way formed that at the head of the pile shaft a protruding profile beam (e.g. 3. Peiner) is concreted in during prefabrication. If when driving such a Reinforced concrete pile the minimum length of the pile shaft to be driven in must be exceeded, the profile beam serves as an extension in a simple manner. If necessary, another piece can be welded to the Ramming to achieve the resulting ramming depth. When using under the name "MV-Rammpfahl" common ramming piles with enlarged displacement shoes the necessary backfill in the ram opening widened to the shaft of the displacement cut. This can be done from above to save cement slurry washed unbroken gravel can be added.

Protruding parts of the profile beam can be cut off or are used to attach connecting irons for the foundation; these Possibility may be a significant advantage.

On the land of the accompanying drawing, the object should be shown schematically of the invention will be explained.

Fig. 1 shows schematically a reinforced concrete pile, partly with a broken length, how it is prefabricated for use, an MV pile as an example.

Fig. 2 and Fig. 3 are cross-sections along the arrow lines II and III of Figure 1.

Fig. 4 shows schematically part of the pile with its steel reinforcement.

In the pictures 10 the Ffahlschuh piit dem is in one piece with it seated pile shaft 11. The displacement pile shoe has a larger cross-section than the pile shaft 11, so that when ramming a space between the soil and Pile shaft arises, which in the usual way through the filling pipe 12 with cement slurry is filled. At the end of the pile shaft 11 is the tormentor during manufacture 13 partially used outstandingly. blit 14 is particularly in fig. 4 denotes the steel reinforcement of the MV pile made of reinforced concrete.

Reinforced concrete piles of the usual and the described ones can be heard on the head outstanding profile girders are expediently with a shaft length made of reinforced concrete according to the driving depth that can be safely achieved and, if necessary, prescribed made so that leg; further ramming the protruding end 15 as an extension serves. Ls is also possible, with a different length for the sake of simplicity the same Sizes and the deviating extension through the protruding part of the profile beam or to extend it accordingly.

The connection of extension pieces to the profile support is through Welding can also be carried out without difficulty during ramming at the construction site.

A change in the shaft length of a normal concrete pile Reduction of the reinforced concrete parts or a corresponding extension with reinforced concrete is extremely difficult and may not be practically possible.

Claims (2)

Expectations 1.) Reinforced concrete pile consisting of a one-piece prefabricated Reinforced concrete shaft with preferably enlarged displacement pile shoe, characterized in that that in the prefabricated reinforced concrete pile at the head of the shaft there is an outstanding Profile support is attached. 2.) Reinforced concrete pile according to claim 1, g e k e n n z e i c h n e t through a reinforced concrete shaft with a continuous filling pipe to an ejection opening on the pole shoe. L e r s e i t e