Drill pipe, and system and method for laying a pipeline

Abstract

The invention relates to a drill pipe for use during the creation of a borehole in a ground from a starting point to a target point along a predetermined drill line, in particular for the near-surface laying of underground cables or electric underground cables in the ground. The invention is characterized in that the borehole is gradually created by means of a drilling device that has a drilling tool for loosening the ground when the drill pipes are advanced, each end of the drill pipe having at least one connection section for detachably connecting it to a further element of a drill string in a tensile resistant manner; in that the drill pipe has at least one element for producing a tensile-resistant connection to a corresponding element of an advance device for advancing the drill pipe into and/or retracting it from the borehole; and in that an outer wall of the drill pipe is made in one piece. The invention further relates to a device for moving at least one drill pipe into a borehole or out of the same, and to a system and a corresponding method.

1 - 27 . (canceled) 
     
     
         28 . A drill pipe for use during the creation of a borehole in a ground from a starting point to a target point along a predetermined drill line for the near-surface laying of at least one of underground cables or underground lines in the ground, wherein the borehole is gradually created by means of a drilling device comprising a drilling tool for loosening the ground when the drill pipes are advanced, comprising;
 at least one connection section at each end for detachably connecting the drill pipe to a further element of a drill string in a tensile-resistant manner;   at least one element for producing a tensile-resistant connection to a corresponding element of an advancing device for at least one of advancing the drill pipe into or retracting it from the borehole; and,   an outer wall comprising one piece.   
     
     
         29 . The drill pipe as claimed in claim  1 , wherein the connection by the respective connection sections of the drill pipe to another element of the drill string comprises at least one of a positive-locking or a non-positive-locking connection. 
     
     
         30 . The drill pipe as claimed in claim  1 , wherein the drill pipe has at its first end a first connection section and at its opposite second end a second connection section compatible with connection section mate-able with the first connection section. 
     
     
         31 . The drill pipe as claimed in  claim 30 , wherein the first connection section and the second connection section in the mounted state form a flange connection, comprising at least one of connection elements or boreholes for a bolt connection. 
     
     
         32 . The drill pipe as claimed in  claim 30 , wherein the first connection section and the second corresponding connection section form a tensile-resistant plug-in sleeve connection, wherein one connection section has a pointed end and the other connection section is a mating sleeve, each of them comprising at least one corresponding indentation in the opposite surface, which forms a groove in the assembled state in which at least one shearing element is inserted to produce the tensile-resistant supporting connection. 
     
     
         33 . The drill pipe as claimed in claim  1 , wherein the element for producing a tensile-resistant connection with the corresponding element of the advancing device is an indentation in the outer wall of the drill pipe. 
     
     
         34 . The drill pipe as claimed in  claim 33 , wherein the indentation includes a covering. 
     
     
         35 . The drill pipe as claimed in claim  1 , wherein the element for producing a tensile-resistant connection with the corresponding element of the advancing device is an element of a tensile-resistant plug-in sleeve connection. 
     
     
         36 . The drill pipe as claimed in claim  1 , wherein the drill pipe comprises at least one conduit section arranged in at least one of the outer wall or in the inner space of the drill pipe at the outer wall and extending in parallel along the outer wall, wherein the at least one conduit section has at each of its ends a connection element for producing a connection between conduit sections of at least one of interconnected drill pipes or elements of the drill string. 
     
     
         37 . A device for moving at least one drill pipe, at least one of into a borehole or out from it, at least one of during the near-surface creation of a borehole in a ground from a starting point to a target point or when placing at least one of a pipeline, underground line or underground cable in the ground from a starting point to a target point or vice versa, comprising;
 at least one base, with at least one abutment,   at least one actuator for moving the at least one drill pipe operatively connected to the base, comprising a transmission element operatively connected to the actuator, for transmitting the movement produced by the at least one actuator to the at least one drill pipe; and,   a guide element which is movable relative to the base and operatively connected to the transmission element, wherein the transmission element comprises at least one positive-locking element for the transmission of the motion, and a tensile-resistant releasable connection is disposed between transmission element and drill pipe.   
     
     
         38 . The device as claimed in  claim 37 , wherein the at least one actuator is at least one of a hydraulic cylinder or a rack and pinion drive. 
     
     
         39 . The device as claimed in  claim 37 , wherein the positive-locking element comprises at least one engaging element which provides the tensile-resistant releasable connection by engaging with an engaging section of the drill pipe. 
     
     
         40 . The device as claimed in  claim 39 , wherein the at least one engaging element encloses the drill pipe, wherein the positive-locking element comprises at least two engaging elements, configured to be at least one of horizontally or vertically movable in the positive-locking element. 
     
     
         41 . The device as claimed in  claim 39 , wherein the at least one engaging element is a connection section corresponding to a connection section of the drill pipe. 
     
     
         42 . The device as claimed in  claim 41 , wherein the connection sections form a tensile-resistant plug-in sleeve connection, wherein the engaging element has at least one of a pointed end or a sleeve corresponding to the pointed end, having at least one corresponding indentation in the opposite surfaces, which form a groove in the assembled state in which at least one shearing element can be inserted to produce the tensile-resistant supporting connection. 
     
     
         43 . The device as claimed in  claim 37 , wherein a starting seal is provided in connection with the base.