Method for forming a foundation pile in the ground

Abstract

The invention relates to a method for forming a foundation pile in the ground, in which a drilled hole is created in the ground, a pile tube is gripped by means of a handling device and inserted into the drilled hole, and a curable medium is introduced into an annular space between a wall of the drilled hole and an outer circumference of the pile tube, which medium cures to form the foundation pile. According to the invention, it is provided that the curable medium is introduced into the drilled hole via the handling device.

1 . A method for forming a foundation pile in the ground, in which
 a drilled hole is created in the ground,   a pile tube is gripped by means of a handling device and inserted into the drilled hole, and   a curable medium is introduced into an annular space between a wall of the drilled hole and an outer circumference of the pile tube, which medium cures to form the foundation pile, wherein   the curable medium is introduced into the drilled hole via the handling device.   
     
     
         2 . The method according to  claim 1 , wherein
 the curable medium is introduced into the drilled hole, while the pile tube is held by the handling device.   
     
     
         3 . The method according to  claim 1 , wherein
 the curable medium is conducted by means of at least one conveying line through the handling device up to at least one feed opening on the pile tube,   wherein the curable medium is conducted via at least one line through the tube wall of the pile tube and emerges into the annular space via at least one outlet opening on the outer circumference of the pile tube.   
     
     
         4 . The method according to  claim 3 , wherein
 two conveying lines and/or lines are provided, which are switched by at least one valve means in such a way that they are connected in parallel for forming a dual feed line, or are connected in series for rinsing operation.   
     
     
         5 . The method according to  claim 3 , wherein
 at least one outlet opening is located in a lower region of the pile tube and the curable medium fills the annular space from the bottom to the top.   
     
     
         6 . The method according to  claim 1 , wherein
 an excess pressure is generated at least in the pile tube, in a lower portion, which excess pressure counteracts an entry of curable medium from the annular space into the interior of the pile tube.   
     
     
         7 . The method according to  claim 6 , wherein
 in order to form an excess pressure in the lower portion of the pile tube a bulkhead plate is arranged therein, which bulkhead plate seals off the lower portion from an upper portion located there above.   
     
     
         8 . The method according to  claim 7 , wherein
 for inserting the pile tube into a drilled hole filled with liquid, at least one through-opening on the bulkhead plate is opened.   
     
     
         9 . The method according to  claim 7 , wherein
 the at least one through-opening is closed after the pile tube has been placed on a drilled hole bottom and before the curable medium is introduced.   
     
     
         10 . The method according to  claim 1 , wherein
 for inserting the pile tube into the drilled hole the handling device is coupled to a lifting equipment, and   after the introduction of the curable medium the lifting equipment is released from the handling device and the handling device remains on the pile tube as an extra load, at least until the medium is cured.   
     
     
         11 . The method according to  claim 10 , wherein
 after the curing of the medium the handling device is released from the pile tube and is salvaged.   
     
     
         12 . The method according to  claim 1 , wherein
 the foundation pile is created under water in a bottom of a body of water as the ground.   
     
     
         13 . The method according to any one of  claim 1 , wherein
 the handling device is actuated based upon a watercraft.   
     
     
         14 . The method according to  claim 1 , wherein
 the handling device is connected via a releasable connecting device to at least one supply line.