Continuous method of realization of works underground, tunnels and excavations in general with works of consolidation, permeabilization and drainage obtained through guided perforations
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United States of America Patent
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May 17, 2005
Grant Date -
Jul 29, 2004
app pub date -
Jan 7, 2004
filing date -
Jan 24, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Continuous method of realization of underground tunnels, including the steps of making a plurality of guided perforations of small cross-section around a periphery of an underground tunnel to be realized and extending at least a majority of length of the underground tunnel to be realized, by perforation equipment with a movable perforation head, filling each guided perforation through at least one of reinforcements and aggregating materials to consolidate the tunnel with a resistant arrangement according to precise static conditions, and excavating the tunnel within the filled perforations.
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