초록 ▼

To lower ground water in the region of foundation bodies, such as foundation piles and the like, a water-pervious layer of filtering concrete, in particular of uniform-grained concrete, is arranged below an upper water-impervious part which is made of standard concrete. From this layer the entering

To lower ground water in the region of foundation bodies, such as foundation piles and the like, a water-pervious layer of filtering concrete, in particular of uniform-grained concrete, is arranged below an upper water-impervious part which is made of standard concrete. From this layer the entering ground water is sucked through a pipe which extends through the foundation body and is designed as a water-pervious filter pipe in the region of the layer of filtering concrete. The layer of filtering concrete is preferably reinforced by reinforcing irons. After lowering of the ground water level, the filtering concrete is injected with a hardenable injection material, thus enabling the lower end of the foundation body to better absorb the pressures transmitted from the upper part.

대표청구항 ▼

A method of constructing a foundation body for reducing a ground water level comprising: positioning a vertically elongated pile in an opening in the ground bearing the ground water level, the pile being vertically elongated and having a vertical opening extending therethrough; providing said pile t

A method of constructing a foundation body for reducing a ground water level comprising: positioning a vertically elongated pile in an opening in the ground bearing the ground water level, the pile being vertically elongated and having a vertical opening extending therethrough; providing said pile to include an upper load bearing part of water impervious material and a lower load bearing layer of water pervious material made of filtering concrete with a pipe which is water pervious at least in the area of said lower layer extending in a portion of said opening in said lower layer; pumping out ground water through said pipe and said opening which has entered said opening through said lower layer; and adding water impervious material to said lower layer through said opening to render said lower layer water impervious.