Soil processing apparatus, in particular diaphragm wall cutter

Abstract

The disclosure relates to a soil processing apparatus, in particular diaphragm wall cutter, for creating a trench, which apparatus is connectable to a work-performing machine, comprising a frame extending along a longitudinal axis, which has a rectangular cross-section transverse to the longitudinal axis, a soil processing tool arranged on a lower section of the frame, a clamping device with at least two clamping elements arranged on opposite sides of the frame, which are actively adjustable relative to the frame in order to press the clamping elements against inner walls of a trench, and a feed device for generating a feed force on the soil processing tool within a trench, by means of which the clamping elements and the frame can be actively adjusted relative to each other along the longitudinal axis.

1 . A soil processing apparatus, for creating a trench, which apparatus is connectable to a work-performing machine, comprising a frame extending along a longitudinal axis, which has a rectangular cross-section transverse to the longitudinal axis, a soil processing tool arranged on a lower section of the frame, a clamping device with at least two clamping elements arranged on opposite sides of the frame, which are actively adjustable relative to the frame in order to press the clamping elements against inner walls of a trench, and a feed device for generating a feed force on the soil processing tool within a trench, by means of which the clamping elements and the frame can be actively adjusted relative to each other along the longitudinal axis,
 wherein   the clamping elements are arranged on the short sides of the frame.   
     
     
         2 . The soil processing apparatus according to  claim 1 , wherein no clamping elements are arranged on the long sides of the frame. 
     
     
         3 . The soil processing apparatus according to  claim 1 , wherein the clamping device comprises at least one clamping actuator by means of which the clamping elements can be actively adjusted relative to the frame. 
     
     
         4 . The soil processing apparatus according to  claim 1 , wherein the clamping elements are adjustable transverse to the longitudinal axis and/or are linearly adjustable. 
     
     
         5 . The soil processing apparatus according to  claim 1 , wherein the clamping elements can be actively adjusted in their orientation relative to the longitudinal axis in order to influence the orientation of the soil processing apparatus relative to the trench. 
     
     
         6 . The soil processing apparatus according to  claim 1 , wherein the feed mechanism comprises at least one feed actuator by means of which the frame can be displaced relative to the clamping elements in a state in which it is jammed in the trench via the clamping elements. 
     
     
         7 . The soil processing apparatus according to  claim 1 , wherein the frame has a modular structure and comprises a lower frame part supporting the soil processing tool, an upper frame part connectable to a work-performing machine and a centre frame part installed between them, wherein the frame parts can be detachably connected to each other via connecting elements. 
     
     
         8 . The soil processing apparatus according to  claim 7 , wherein the centre frame part comprises the clamping device and/or the feed device. 
     
     
         9 . The soil processing apparatus according to  claim 1 , wherein the clamping device comprises at least two clamping elements on each of the short sides of the frame, which are arranged one above the other and which can be actuated alternately via the feed device in such a way that a feed force can be generated by means of first feed actuators by jamming via a first opposite pair of clamping elements, while a second opposite pair of clamping elements are moved freely relative to the frame by means of second feed actuators. 
     
     
         10 . The soil processing apparatus according to  claim 1 , wherein the clamping elements are adjustable via separate clamping actuators and the clamping elements are mounted so that they can be moved in guide elements of the frame that run parallel to the longitudinal axis. 
     
     
         11 . The soil processing apparatus according to  claim 10 , wherein slides are displaceably mounted in the guide elements, to which the clamping actuators. 
     
     
         12 . The soil processing apparatus according to  claim 1 , wherein the soil processing apparatus is configured as a diaphragm wall cutter and the soil processing tool comprises at least one cutter wheel. 
     
     
         13 . A work-performing machine, comprising a soil processing apparatus according to  claim 1 , wherein the soil processing apparatus is configured as a diaphragm wall cutter. 
     
     
         14 . A set comprising a soil processing apparatus which is developed according to  claim 7 , and at least one further centre frame part which can be installed between the upper and lower frame parts instead of the centre frame part comprising the clamping and/or feed device, wherein at least one further centre frame part has neither a clamping device nor a differently configured clamping device. 
     
     
         15 . A method for creating a trench by means of a soil processing apparatus according to  claim 1 , wherein the soil processing apparatus is configured as a diaphragm wall cutter, said method comprising the steps of:
 producing two spaced-apart diaphragm wall panels by filling two trenches crated by means of the soil processing apparatus with concrete, wherein the distance between the primary panels is smaller than the width of the primary panels along their long side; and   producing a trench connecting the primary panels by milling or excavating the gap between the primary panels using the soil processing apparatus, wherein edge sections of the diaphragm panels are also milled off, wherein, when creating the trench, a feed force is generated by means of the feed device, while the clamping elements are supported on the adjacent primary panels.   
     
     
         16 . The soil processing apparatus according to  claim 1 , wherein the soil processing apparatus is a diaphragm wall cutter 
     
     
         17 . The soil processing apparatus according to  claim 3 , wherein the at least one clamping actuator is configured as a hydraulic cylinder, by means of which the clamping elements can be actively adjusted relative to the frame, wherein each clamping element is adjustable via at least one separate clamping actuator, which is connected to the associated clamping element and to the frame. 
     
     
         18 . The soil processing apparatus according to  claim 6 , wherein the at least one feed actuator is configured as a hydraulic cylinder, by means of which the frame can be displaced relative to the clamping, wherein each clamping element is articulatedly connected to the frame via a separate feed actuator. 
     
     
         19 . The soil processing apparatus according to  claim 7 , wherein the upper and lower frame parts can each be detachably connected to each other both directly and via the centre frame part that can be arranged between them. 
     
     
         20 . The soil processing apparatus according to  claim 10 , wherein the clamping actuators are supported on the guide elements in order to press the clamping elements against the inner walls of a trench.