Method for forming a support wall in the ground and support wall

Abstract

The invention relates to a method for forming a support wall in the ground from a soil mortar which is made in the ground by mixing soil material and a cement suspension, wherein vertically directed support beams comprising a structural steel are set into the soil mortar in the ground prior to curing, and after curing, soil material is removed along an upper support wall section on at least one side of the support wall, while a lower support wall section continues to be surrounded by soil on both sides. According to the invention, it is provided that a thin-walled sheathing element from concrete is attached to at least one support beam, which extends along an upper support beam section, and that the support beam is set into the soil mortar in such a way that the upper support beam section with the sheathing element from concrete extends along the upper support wall section.

1 . A method for forming a support wall in the ground from a soil mortar which is made in the ground by mixing soil material and a cement suspension, wherein vertically directed support beams comprising a structural steel in that are set soil mortar in the ground prior to curing, and
 after curing, soil material is removed along an upper support wall section on at least one side of the support wall, while a lower support wall section continues to be surrounded by ground on both sides,   wherein   a thin-walled sheathing element made of concrete material is attached to at least one support beam, which sheathing element extends along an upper support beam section, and   the support beam is set in the soil mortar in such a way that the upper support beam section with the sheathing element made of a concrete material extends along the upper support wall section.   
     
     
         2 . The method according to  claim 1 ,
 wherein   the lower support beam section is formed from concrete material without a sheathing element and is arranged within the lower support wall section.   
     
     
         3 . The method according to  claim 1 ,
 wherein   the lower support beam section is placed onto a soil bed.   
     
     
         4 . The method according  claim 1 ,
 wherein   the sheathing element is formed with a wall thickness of between 1 and 10 cm, preferably between 4 and 8 cm.   
     
     
         5 . The method according to  claim 1 ,
 wherein   the sheathing element is of plate-shaped design and is arranged at least on the side of the support beam which is directed towards a free side of the upper support wall section on which soil material is removed.   
     
     
         6 . The method according to  claim 1 ,
 wherein   at least two opposing plate-shaped sheathing elements, which extend parallel to one another, are arranged on the support beam.   
     
     
         7 . The method according to  claim 1 ,
 wherein   the at least one support beam is configured as a solid steel girder, in particular with an H, T, C or I profile, or as a lattice-like or scaffold-like beam of struts.   
     
     
         8 . The method according to  claim 1 ,
 wherein   a cutting trench is formed in the ground by cutting, wherein removed soil material in the cutting trench is processed into the soil mortar by feeding of and mixing with a cement suspension.   
     
     
         9 . The method according to  claim 1 ,
 wherein   a borehole is formed in the ground by drilling, wherein the removed soil material in the borehole is processed to the soil mortar by feeding of and mixing with a cement suspension.   
     
     
         10 . The method according to  claim 9 ,
 wherein   several boreholes are formed next to one another in the ground by drilling in order to form the support wall.   
     
     
         11 . A support wall in the ground made of a soil mortar, in particular formed by a method according to  claim 1 , wherein the soil mortar in the ground is produced by mixing soil material and a cement suspension and is cured in the ground to the support wall,
 vertically directed support beams comprising a structural steel are set into the soil mortar in the ground prior to curing, and   after curing, by removal of soil material, the support wall is exposed on at least one side along an upper support wall section, while a lower support wall section continues to be surrounded on both sides by ground,   wherein   a sheathing element made of concrete material is arranged on at least one support beam and extends along an upper support beam section, and the support beam is set into the soil mortar in such a way that the upper support beam section with the sheathing element ( 30 ) made of concrete material extends along the upper support wall section.   
     
     
         12 . The support wall according to  claim 11 ,
 wherein   a lower support beam section is formed without a sheathing element from concrete material and is arranged within the lower support wall section.   
     
     
         13 . The support wall according to  claim 11 ,
 wherein   the sheathing element is formed with a wall thickness of between 1 and 10 cm, preferably between 4 and 8 cm.   
     
     
         14 . The support wall according to  claim 11 ,
 wherein   the sheathing element is of plate-shaped design and is arranged at least on the side of the support beam which is directed towards a free side of the upper support wall section on which soil material is removed.