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US 2007/0280786 A1Published application
Advancement Of Pipe Elements In The Ground
OwnerStefan Trumpiinventor
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OwnerStefan Trumpiinventor
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The aim of the invention is to advance pipe elements (18) for constructing an elongate structure in a soft, stony, rocky, and/or monolithic ground. Said aim is achieved by determining the force of advancement (40), the eccentricity (52) thereof in relation to the neutral axis (N), and/or the direction of advancement (28) with the aid of a pressing device (24) and extension elements (44) which are filled with fluid and are disposed on the face of the joints (70) of the tubing (14). The fluid pressure (p) is measured in at least one portion of the extension elements (44) which extends along the entire length of the tubing (14), and/or the deformation is measured in some of the joints (70). The force of advancement (40) and the eccentricity (52) are calculated from said parameters, and the values are stored and/or are compared to stored standard values. According to a variant, the eccentricity (52) is calculated, and the values are converted into control commands for the pressing device (24) and/or the individual fluid supply to or the individual fluid discharge from the extension elements (44).
Method for determining the propulsion force (40), its eccentricity (52) in relation to the neutral axis (N) and/or the advance direction (28) on advance of pipe elements (18) to produce a longitudinal structure in soft, stony and/or rocky ground, using a pressing device (24) and on the faces fluid-filled expansion elements (44) arranged in the joints (70) of the pipeline (14), characterised in that in at least a part of the expansion elements (44) which are distributed over the entire length of the pipeline (14), the fluid pressure (p) and/or the deformation of the joints (70) is measured, and from these parameters the propulsion force (40) and eccentricity (52) are calculated and the values stored and/or compared with stored standard values.
Method for controlling the propulsion force (40), minimising its eccentricity (52) in relation to the neutral axis (N) and/or the advance direction (28) on advance of pipe elements (18) to produce a longitudinal structure in soft, stony and/or rocky ground, using a pressing device (24) and on the faces fluid-filled expansion elements (44) arranged in the joints (70) of the pipeline (14), characterised in that in at least a part of the expansion elements (44) which are distributed over the entire length of the pipeline (14), the fluid pressure (p) and/or the deformation of the joints (70) is measured, and from these parameters the propulsion force (40) and eccentricity (52) are calculated and the values converted into control commands for the pressing device (24) and/or the individual fluid supply to or individual fluid discharge from the expansion elements (44).
Dependencies are inferred from the claim text.