TREA

with means for consolidating the rock in front of the shield by injection of consolidating substances through boreholes

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Industry

  • CPC
  • E21D9/0671
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D9/00Tunnels or galleries, with or without linings Methods or apparatus for making thereof Layout of tunnels or galleries

Current Industry

E21D9/0671with means for consolidating the rock in front of the shield by injection of consolidating substances through boreholes
Industries

Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    TUNNELLING SHIELD
    • Publication number 20230193758
    • Publication date Jun 22, 2023
    • hyperTunnel IP Limited
    • Steve Jordan
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    BARRIER FORMING APPARATUS
    • Publication number 20160208608
    • Publication date Jul 21, 2016
    • Glen Roy MAYNARD
    • E21 - EARTH DRILLING MINING