horizontal directional granular


  • Harding Directional Drilling - Guidelines

    Guidelines For a Successful Directional Crossing Bid Package : The Directional Crossing Contractors Association (DCCA) has been addressing the issue of what information should be made available to contractors and engineers so that future projects proceed as planned.

  • DESIGN AND PROJECT MANAGEMENT …

    DESIGN AND PROJECT MANAGEMENT CONSIDERATIONS INVOLVED WITH HORIZONTAL DIRECTIONAL DRILLING John D. Hair, P.E.1 ABSTRACT Utilization of Horizontal Directional Drilling for the trenchless installation of buried

  • Grouts & Sealants - CETCO

    Our extensive line of grouts & sealants covers every application From bentonite tablets to high thermal conductivity grouts

  • Environmental Drilling - CETCO

    Environmental Drilling ... blends a granular bentonite with a consistently ... conditions associated with drilling horizontal directional recovery wells ...

  • The Crossing Group - Trenchless Construction …

    Horizontal Directional Drilling (HDD) A surface-based trenchless technology that involves a horizontal bore under the surface along a planned pathway. Once the HDD creates a bore of suitable size – which may require one or multiple passes by the drilling apparatus – the conduit or pipe is pulled into the bore and connections are made to …