Abstract:
Die Erfindung betrifft eine Vorrichtung zum bevorzugt oberflächennahen Verlegen mindestens eines Stranges (12) in einer Bodenfläche (32), speziell einer Sport- oder Freizeitanlage oder einer landwirtschaftlichen Nutzfläche, umfassend eine Aushubeinrichtung (18) zum Ausbilden einer formfesten schlitzförmigen Ausnehmung (38) in der Bodenfläche (32) und Bereitstellen dabei auftretenden Aushubs (58), eine Strangeinbringeinrichtung (20), über die mindestens ein Strang (12) der Aushubeinrichtung (18) nachgelagert in die Ausnehmung (38) einbringbar ist, bezogen auf eine Bearbeitungsrichtung (30) der Vorrichtung (10; 120; 140), und eine Aushubrückführeinrichtung (22), die mindestens ein Rückführelement (80, 82, 84) für Aushub (58) umfasst oder bildet, wobei der Aushub (58) das mindestens eine Rückführelement (80, 82, 84) entlang in Bearbeitungsrichtung (30) der Strangeinbringeinrichtung (20) nachgelagert in die Ausnehmung (38) rückführbar ist. Außerdem betrifft die Erfindung ein Verfahren und eine Verlegeanlage.
Abstract:
The present invention relates to a machine arranged for sawing micro trenches and placing ducts/cables in micro trenches, said machine comprising a saw blade arranged for sawing a micro trench in an area; said machine further comprising: a stabilizing device arranged for stabilizing the walls of said micro trench when placing ducts/cables into said micro trench, said stabilizing device being positioned immediately behind said saw blade in said micro trench, and said stabilizing device comprising guiding means for guiding at least one duct/cable when placed into said micro trench; said saw blade and said stabilizing device are arranged to be lowered and elevated independently of each other
Abstract:
A trench cutting apparatus (2) for cutting a trench in the sea bed supporting a pipe is disclosed. The apparatus comprises a tractor (8) and tracks (14) for engaging the sea bed and supporting the tractor. A first chain cutter (18) for cutting a first trench portion in the sea bed on a first side of the pipe cooperates with a second chain cutter (20) for cutting a second trench portion on a second side of the pipe and the first and second chain cutters are spaced from each other in a direction of travel of the apparatus, such that the first and second chain cutters cooperate with each other to form a trench (28) below the pipe while leaving uncut sea bed material 34 between the pipe and the trench. The first and second chain cutters are provided with jet outlets (32) for cutting uncut material of the floor between the trench and the elongate object.
Abstract:
A device (1) for burying a conduit (2) in the bed (3) of a body of water (4) has a digging module (8) for digging a trench (9) in the bed (3) of the body of water (4); a manipulating module (10) for feeding conduit sections (S) into the trench (9); and a push module (11) for joining the conduit sections (5) inside the trench (9) and moving the device (1) in a travelling direction (D1).
Abstract:
A shoring box system (10) for use in a ground trench (60) includes a pair of shoring panels (12) and a number of elongate props (22). The props are attached to the two shoring panels to maintain the panels in an erected position in which they are spaced apart, with an open zone (19) between the panels. The props can be detached from the shoring panels while the shoring panels are in the erected position. In an embodiment each panel is hollow and has a lower opening (36) with a closure flap (38) for closing the opening, to enable filling material in the hollow to pour from the panel as it is removed from the trench. Also in an embodiment, each shoring panel is tapered in a downward direction.
Abstract:
The present invention relates to a saw blade for a sawing machine, said sawing machine (10) being arranged for cutting micro trenches by means of said saw blade (1), wherein said micro trenches are adapted for receiving at least one duct/cable; wherein said saw blade comprises mechanical coding means (2) selected from the group consisting of holes, depressions and protnisions arranged on said saw blade (1); and said holes, depressions and protrusions being coding elements for forming at least one code symbol (4) representing a unique identity (ID) for said saw blade.
Abstract:
Dumping system for dumping bulk materials on the sea bottom for supporting a subsea infrastructure or on a subsea infrastructure on the sea bottom, comprising a dumping vessel with a floating hull provided with a hoisting device, and a first bulk material shuttle which is suspended from the hoisting device to be lowered towards the sea bottom, wherein the first bulk material shuttle is provided with a first bulk material container for carrying inserted bulk, wherein the dumping vessel further comprises a dosing device for release of the bulk material from the first bulk material container.
Abstract:
A method of laying a pipeline (2) in the bed (3) of a body of water (4) provides for advancing a digging assembly (1) along a pipeline (2) laid along a path (P) on the bed (3) of the body of water (4); digging a trench (5) along the path (P) in the bed (3) of the body of water (4) by means of the digging assembly (1), so a portion of pipeline (2) settles onto the bottom of the trench (5); acquiring, by means of the digging assembly (1), data related to the bathymetric profile of the portion of pipeline laid on the bottom of the trench (5); comparing the acquired data with a set of permissible values; and emitting an error signal (El, E2) when the acquired data does not fall within the set of permissible values.
Abstract:
A trench excavating apparatus (10) for excavating a trench (100) and placing an elongated member (110) within the excavated trench, the apparatus comprising: a movable body (20) having at least one elongated member support (30) for carrying the elongated member; an excavating device (40) connected to the movable body for excavating the trench, the excavating device being adjustable to provide a varying trench depth; measuring means for measuring a parameter relating to the elongated member as it is supported by the elongated member support; and excavating device adjustment means adapted to vary the depth of the excavated trench in response to changes in the measured parameter.
Abstract:
A method of laying underwater pipelines in the bed (3) of a body of water (2), the method including laying an underwater pipeline (4) along a given path (P) on the bed (3) of the body of water (2); breaking up a ground mass along the path (P) to a given depth in the bed (3); and fluidifying the broken ground mass beneath the underwater pipeline (4) to sink the underwater pipeline (4) into the fluidified ground mass.