Replacing district heating lines without digging trenches involves removing old line sections at two holes, pulling out line or inner pipe between holes, pulling in new line or pipe between holes
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Drill head with energy generating device
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Method and device for trenchless installation of external current anodes for cathodic corrosion protection
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Extraction of geothermal energy from blind bores involves closed circuit feed of heat transmission medium with first chamber in heat exchanger tube for feed of cold fluid
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Horizontal wet drilling tool uses vibration device for periodic impact of drill rod or drill head in longitudinal direction during horizontal displacement
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Replacement of underground pipes of different diameter without digging, with optional expansion to greater conducting cross-sections
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Hammer drill head has a moving piston in a chamber to compress the drilling fluid for delivery through at least one outlet jet for horizontal drilling in rock with a drilling fluid
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Method and device for creating controlled house connections
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Drill pipe magazine
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Device and method for drilling holes in building walls
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Stabilized dike and method for the subsequent stabilization of a dike
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Temperature-controlled airfield traffic route and method for retrofitting an existing airfield traffic route
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Subsequent trenchless airfield lighting
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Process for sealing floor bodies and device for carrying out this process
