Vibrator assembly for creating stone columns, and method for creating stone columns

Abstract

A vibrator assembly comprising a feed pipe that has a longitudinal axis as well as a first end and a second end. The vibrator assembly may further comprise a vibrator unit that is mechanically coupled to the feed pipe, and a filling assembly which extends into the feed pipe at the first end and is designed to pick up material and direct same into the feed pipe. The feed pipe may have at least two separate channels from the first end to the second end and parallel to the longitudinal axis.

1 . A vibrator assembly, comprising:
 a silo pipe with a longitudinal axis and with a first end and a second end;   a vibrator unit, which is coupled mechanically to the silo pipe; and   an introduction arrangement, which opens out into the silo pipe at the first end and is designed to accommodate material and direct the material into the silo pipe,   wherein the silo pipe has at least two separate channels running from the first end to the second end and parallel to the longitudinal axis,   wherein each of the at least two separate channels, at its respective first end, is configured to receive material from the introduction arrangement,   wherein the silo pipe further includes at least one supply channel, and   wherein the at least one supply channel runs parallel to the longitudinal axis, is arranged in the interior of the silo pipe, is arranged between the at least two material channels, and is coupled to the vibrator unit.   
     
     
         2 . The vibrator assembly as claimed in  claim 1 , wherein the at least one supply channel is designed to accommodate at least one electric line. 
     
     
         3 . The vibrator assembly as claimed in  claim 1 , wherein the silo pipe includes at least two supply channels, which each open out into a respective one of the material channels and are designed to direct compressed air into the material channels. 
     
     
         4 . The vibrator assembly as claimed in  claim 3 , wherein pressure and volume flow of the compressed air directed inward can be controlled separately for each channel. 
     
     
         5 . The vibrator assembly as claimed in  claim 1 , wherein the silo pipe has three or more material channels. 
     
     
         6 . The vibrator assembly as claimed in  claim 1 , wherein at least two of the at least two material channels are separated from one another in a gas-tight manner. 
     
     
         7 . The vibrator assembly as claimed in  claim 1 , wherein the at least two material channels are separated from one another by one or more crosspieces. 
     
     
         8 . The vibrator assembly as claimed in  claim 1 , wherein the introduction arrangement includes at least two chambers, of which each opens out into a respective one of the at least two material channels. 
     
     
         9 . The vibrator assembly as claimed in  claim 8 , wherein each of the at least two chambers has at least two valves. 
     
     
         10 . The vibrator assembly as claimed in  claim 1 , further comprising:
 at least one upper compressed-air infeed, which opens out into one of the at least two material channels in the region of the first end of the silo pipe and is designed to direct compressed air into the interior of the one channel.   
     
     
         11 . The vibrator assembly as claimed in  claim 10 , further comprising:
 a number of upper compressed-air infeeds which corresponds to a number of channels, wherein each of the upper compressed-air infeeds opens out into in each case one of the at least two channels in the region of the first end of the silo pipe.   
     
     
         12 . The vibrator assembly as claimed in claims, further comprising:
 at least one lower compressed-air infeed, which opens out into one of the at least two channels in the region of a plane of the silo pipe and is designed to direct compressed air into the interior of the one channel.   
     
     
         13 . The vibrator assembly as claimed in  claim 12 , further comprising:
 a number of lower compressed-air infeeds which corresponds to a number of channels, wherein each of the lower compressed air infeeds opens out into in each case one of the at least two channels in the region of the second end of the silo pipe.   
     
     
         14 . The vibrator assembly as claimed in  claim 1 , wherein the vibrator unit is fitted at the second end of the silo pipe. 
     
     
         15 . The vibrator assembly as claimed in  claim 1 , wherein the at least two material channels of the silo pipe have at least approximately less identical surface areas in a cross-sectional plane which runs perpendicularly to the longitudinal axis of the silo pipe.