Auxiliary harness for releasing a clamping connection for nested gutter profiles of the underground mine excavation
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Tubbing extension with integrated compliance element
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Tubbing removal with integrated adjustment element
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Tubing construction with front ring encircling ring seal
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Underground construction with yielding coupling
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Lining support for underground mining and tunneling
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Polygonalausbau for underground tracks and tunnels.
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Elasticity element
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Device for manufacturing arc-shaped lattice beam, has three parallel extending bracing rods, framework stiffener arranged between bracing rods and coupling piece at end side of bracing rods
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Clamp connection for profile segments of underground yielding arch supports has hook elements consisting of flange hooks and holding rings for bolts; L-shaped pressure parts have clamping legs and pressure legs supported on holding rings
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Clamping connection for groove-shaped profile segments of substrate sliding arm extensions, has hook units with flange hooks, hook limbs and screw bolts with associated nuts, where screw bolts are welded in recesses of hook limbs
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Parallel belt girder, especially for track extension and tunnel construction
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Grid for concrete constructions has an upper, lower and transverse struts made from glass-fiber reinforced plastic, used mainly in e.g. tunnels gives easier transportation, construction and maintenance
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Bore injection anchor, for tunneling applications, has raised projections and/or recesses in its outer mantle
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Articulated double bar connection for longitudinal belts of lattice or truss-like segments for the construction of mines or tunnels
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Device for loosening and conveying mineral raw materials that are present in seams, in particular coal
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Continuously operating extraction machine for the simultaneous extraction and removal of coal
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Stackable lattice girder removal frame and stiffeners for this frame
