Method and underground construction device for ground working

Abstract

The invention relates to a method for ground working with an underground construction device which comprises at least one rotary drive unit for rotationally driving a ground working tool and at least one feed unit, by means of which the ground working tool is introduced into the ground for creating a hole, wherein a control and evaluation unit is provided, by means of which setting parameters are acquired and stored during ground working, at least one state value resulting from ground working is acquired and stored and the setting parameters are changed and set by the control and evaluation unit depending on the at least one acquired state value. According to the invention, it is provided that an automatic calibration is carried out by the control and evaluation unit at least at the beginning of ground working, wherein ground working is performed in a first calibration section with a first set of setting parameters predetermined by a calibration program and at least in a further second calibration section with a second set of setting parameters predetermined by the calibration program, wherein the predetermined sets of setting parameters differ from one another, and that subsequently the control and evaluation unit sets the setting parameters for further ground working depending on the state variables acquired in the calibration sections.

1 . A method for ground working with an underground construction device, which comprises at least one rotary drive unit for rotationally driving a ground working tool and at least one feed unit by means of which the ground working tool is introduced into the ground for creating a hole, wherein a control and evaluation unit is provided, by means of which
 setting parameters are acquired and stored during ground working,   at least one state value resulting from ground working is acquired and stored, and   the setting parameters are changed and set depending on the at least one acquired state value, by the control and evaluation unit,   wherein   the control and evaluation unit carries out an automatic calibration at least at the beginning of ground working, wherein ground working is carried out in a first calibration section with a first set of setting parameters predetermined by a calibration program and at least in a further second calibration section with a second set of setting parameters predetermined by the calibration program, wherein the predetermined sets of setting parameters differ from one another, and   subsequently the control and evaluation unit sets the setting parameters for further ground working depending on the state variables acquired in the calibration sections.   
     
     
         2 . The method according to  claim 1 ,
 wherein   more than two calibration sections with different sets of setting parameters are provided by the calibration program.   
     
     
         3 . The method according to  claim 1 ,
 wherein   one of the sets of setting parameters is selected from a calibration section for the ground working following the calibration.   
     
     
         4 . The method according to  claim 1 ,
 wherein   the setting parameters for the ground working following the calibration are freely determined by the control and evaluation unit.   
     
     
         5 . The method according to  claim 1 ,
 wherein   the calibration is performed at the beginning of the creation of a hole, wherein the calibration is provided up to a depth of 5 m, preferably from 1 m to 4 m.   
     
     
         6 . The method according to  claim 1 ,
 wherein   the at least one setting parameter and/or the at least one state value are acquired and stored over time and/or the advance distance.   
     
     
         7 . The method according to  claim 1 ,
 wherein   a torque of the rotary drive unit, a feed force of the feed unit and/or a pressure or a volume in a hydraulic system for driving the rotary drive unit and/or the feed unit are selected as setting parameters.   
     
     
         8 . The method according to  claim 1 ,
 wherein   for the ground working following the calibration, the setting parameters are selected by the control and evaluation unit depending on a lowest possible energy consumption, a lowest possible wear and/or a lowest possible vibration/sound emission.   
     
     
         9 . The method according to  claim 1 ,
 wherein   during sinking of the hole into the ground, a calibration is performed multiple times.   
     
     
         10 . The method according to  claim 1 ,
 wherein   drilling with a drilling tool is carried out as ground working.   
     
     
         11 . The method according to  claim 1 ,
 wherein   cutting with a trench cutter is carried out as ground working.   
     
     
         12 . An underground construction device for ground working according to a method according to  claim 1 ,
 with a rotary drive means for rotationally driving a ground working tool and a feed unit, by means of which the ground working tool can be introduced into the ground in an advancing direction, and with a control and evaluation unit, which is configured to
 carry out automatic calibration at least at the beginning of ground working, 
 perform ground working in a first calibration section with a first predetermined set of setting parameters and at least in a further second calibration section with a predetermined second set of setting parameters, wherein the sets of setting parameters differ from each other, and 
 depending on the state values acquired during calibration, set the setting parameters for the ground working following the calibration. 
   
     
     
         13 . The underground construction device according to  claim 12 ,
 wherein   this device is a drilling apparatus, in which a drilling tool is rotationally driven by means of the at least one rotary drive unit.   
     
     
         14 . The underground construction device according to  claim 12 ,
 wherein   this device is a trench cutter, in which cutting wheels are driven by means of the at least one rotary drive unit.