Pile driving and extraction device

Abstract

A device for driving and extraction of sheet piles into or from the ground, respectively, has a leader on which an exciter cell is guided. The exciter cell is coupled with an advancing system by way of which it can be moved in linear manner. The exciter cell is rigidly connected with at least one guide element that is exclusively guided on the leader and elastically connected with the advancing system.

1 . A device for driving and/or extraction of sheet piles into and from the ground, respectively, comprising:
 a leader on which an exciter cell is guided;   an advancing system coupled to the exciter cell, the advancing system being adapted to move the exciter cell in a linear manner; and   at least one guide element rigidly connected with the exciter cell, wherein the at least one guide element is exclusively guided on the leader and elastically connected with the advancing system.   
     
     
         2 . The device according to  claim 1 , wherein the at least one guide element is coupled to the advancing system by at least one elastic cable. 
     
     
         3 . The device according to  claim 2 , wherein the at least one elastic cable is produced from polyethylene fibers composed of ultra-high-crystalline molecular polyethylene, or from glass fibers. 
     
     
         4 . The device according to  claim 1 , wherein the at least one guide element is coupled to the advancing system by at least one cable connected with at least one spring module. 
     
     
         5 . The device according to  claim 4 , wherein the at least one spring module is configured as a spring packet composed of springs selected from the group consisting of cylindrical helical springs, plate springs, gas pressure springs, torsion bar springs and flexion springs. 
     
     
         6 . The device according to  claim 4 , wherein the at least one spring module is formed from at least one rocker, which is connected with the at least one guide element by way of an axle, so as to pivot, wherein a first clamping unit is disposed on the at least one rocker, at a distance from its axle, and a second clamping unit for an elastic element is disposed at a distance from the rocker, and wherein at least one cable is attached to the rocker on a side that lies opposite the axle. 
     
     
         7 . The device according to  claim 6 , wherein two rockers are disposed on the at least one guide element, vertically spaced apart from one another, wherein one of said rockers is connected with at least one traction cable and the other of said rockers is connected with at least one load cable, and wherein the elastic element assigned to each rocker is disposed on the pivot axle of the opposite rocker, connected with the at least one guide element. 
     
     
         8 . The device according to  claim 7 , wherein the pivot axle of the first rocker is disposed horizontally offset from the pivot axle of the second rocker. 
     
     
         9 . The device according to  claim 6 , wherein the elastic element is in the form of an elastic loop. 
     
     
         10 . The device according to  claim 9 , wherein the elastic loop is produced from glass-fiber-reinforced plastic. 
     
     
         11 . The device according to  claim 1 , wherein the at least one guide element is disposed on a carriage that is rigidly connected with the exciter cell. 
     
     
         12 . The device according to  claim 11 , wherein the carriage has a length that projects beyond a length of the exciter cell.