Method and device for producing a foundation element in the ground from a soil mortar

Abstract

The invention relates to a method for producing a foundation element in the ground from a soil mortar, having a ground removal device with at least one rotationally driven processing tool, wherein the at least one processing tool is moved substantially vertically relative to the ground and ground material is removed by the at least one rotationally driven processing tool by forming a hole in the ground, a settable suspension is fed into the hole and the removed soil material remains at least partially in the hole and is mixed in situ by the at least one rotationally driven processing tool with the supplied suspension to form the soil mortar, wherein the soil mortar formed, after the at least one rotationally driven processing tool has been withdrawn from the hole, hardens to the foundation element in the ground, wherein at least the vertical movement of the at least one machining tool, the rotary movement of the at least one machining tool, the supply of suspension and at least one dimensioning of the foundation element represent method parameters. According to the invention it is provided that the method is carried out automatically with a control device at least in portions, wherein at least one method parameter is entered into the control device as a default value, and in that at least one remaining method parameter is set and controlled by the control device in dependence on the at least one default value entered.

1 . A method for producing a foundation element in the ground from a soil mortar, having a ground removal device with at least one rotationally driven processing tool, wherein
 the at least one processing tool is moved substantially vertically relative to the ground and ground material is removed by the at least one rotationally driven processing tool by forming a hole in the ground,   a settable suspension is fed into the hole and   the removed soil material remains at least partially in the hole and is mixed in situ by the at least one rotationally driven processing tool with the supplied suspension to form the soil mortar,   wherein the soil mortar formed, after the at least one rotationally driven processing tool has been withdrawn from the hole, hardens to the foundation element in the ground,   wherein at least the vertical movement of the at least one machining tool, the rotary movement of the at least one machining tool, the supply of suspension and at least one dimensioning of the foundation element represent method parameters,   wherein   the method is carried out automatically with a control device at least in portions, wherein at least one method parameter is entered into the control device as a default value, and   at least one remaining method parameter is set and controlled by the control device in dependence on the at least one default value entered.   
     
     
         2 . The method according to  claim 1 ,
 wherein   the method parameters comprise or additionally have at least one of the following parameters: rotational speed of the machining tool, direction of rotation of the machining tool, torque of the machining tool, number of rotations per depth feed of the machining tool, vertical movement speed or vertical feed force when lowering or pulling the machining tool, feed rate of suspension, feed quantity of suspension, or a combination thereof.   
     
     
         3 . The method according to  claim 1 ,
 wherein   the at least one rotationally driven machining tool comprises a drilling tool which is rotationally driven about a substantially vertically directed drilling axis, wherein   the hole is produced by drilling.   
     
     
         4 . The method according to  claim 1 ,
 wherein   the at least one rotationally driven machining tool comprises a milling wheel which is driven in rotation about a substantially horizontally oriented milling wheel axis, wherein the hole is produced by milling.   
     
     
         5 . The method according to  claim 1 ,
 wherein   at least one rotationally driven processing tool has at least one removal element, by means of which soil material is removed and is comminuted, and/or has at least one mixing element through which the removed soil material is mixed with the fed suspension.   
     
     
         6 . The method according to  claim 1 ,
 wherein   a feed of suspension into the hole and a movement of the at least one rotationally driven processing tool, in particular a rotation of the at least one rotationally driven processing tool, are entered into the control device as default values, and   a substantially vertical movement of the at least one rotationally driven processing tool is set by the control device in dependence on the default values entered.   
     
     
         7 . The method according to  claim 1 ,
 wherein   a vertical lowering of the at least one rotationally driven machining tool is set by the control device, if this is not a default value, and/or a vertical pulling of the at least one rotationally driven machining tool is set, if this is not a default value.   
     
     
         8 . The method according to  claim 1 ,
 wherein   a rotation of the processing tool and/or a feed rate and/or a feed quantity of suspension is set by the control device, if these are not default values.   
     
     
         9 . The method according to  claim 1 ,
 wherein   the control device controls the feed device, in particular a suspension pump, through which suspension is fed into the hole.   
     
     
         10 . A device for creating a foundation element in the ground from a soil mortar, in particular according to  claim 1 , with a soil removal device with at least one rotationally driven processing tool, wherein the device is configured,
 to move the at least one processing tool substantially vertically relative to the ground and to remove ground material by means of the at least one rotationally driven processing tool by forming a hole in the ground,   to feed a settable suspension into the hole by means of a feeding device, and   to mix, in situ in the hole by the at least one rotationally driven processing tool, the supplied suspension with removed soil material to form the soil mortar,   wherein the soil mortar formed, after the at least one rotationally driven processing tool has been withdrawn out of the hole, hardens to the foundation element in the ground,   wherein at least the vertical movement of the at least one machining tool, the rotary movement of the at least one machining tool, the supply of suspension and at least one dimensioning of the foundation element represent method parameters,   wherein   a control device is provided and configured, with which the creation of the foundation element can be carried out automatically at least in portions, wherein   at least one method parameter is entered into the control device as a default value, and   a substantially vertical movement of the at least one rotationally driven machining tool is set by the control device depending on the default values entered.   
     
     
         11 . The device according to  claim 10 ,
 wherein   the device is configured as a drilling device, in which the at least one rotationally driven machining tool comprises a drilling tool which is driven in rotation about a substantially vertically directed drilling axis.   
     
     
         12 . The device according to  claim 11 ,
 wherein   the drilling device has a plurality of drilling tools which are arranged parallel next to each other.   
     
     
         13 . The device according to  claim 10 ,
 wherein   the device is configured as a milling machine, in particular a diaphragm wall milling machine, in which the at least one rotationally driven machining tool has a milling wheel which is driven in rotation about a substantially horizontally directed milling wheel axis.   
     
     
         14 . The device according to  claim 13 ,
 wherein   the milling machine has a plurality of milling wheels, in particular two pairs of milling wheels, which are arranged parallel next to each other.   
     
     
         15 . The device according to  claim 10 ,
 wherein   a suspension pump is arranged for feeding suspension into the hole, wherein   the suspension pump is controlled by the control device.