DEEP INCLINED CORE DRILLING AT CRAIG GOCH

As a further stage of the investigations into foundations of the proposed new high dam for the Craig Goch project, five drilled boreholes were sunk, four of which were inclined at 45 deg, while one was vertical. Details are given of the drilling into superficial material and lower Silurian cleaved mudstone containing occasional quartz veins, of the pumping-in permeability tests and of the borehole surveys carried out in the three deep inclined boreholes using Eastman photographic survey equipment. /TRRL/

  • Availability:
  • Corporate Authors:

    Foundation Publications Limited

    7 Ongar Road
    Brentwood CM15 9AU, Essex,   England 
  • Publication Date: 1976-1

Media Info

  • Features: Photos;
  • Pagination: p. 43-44
  • Serial:
    • GROUND ENGINEERING
    • Volume: 9 N
    • Issue Number: 1
    • Publisher: EMAP CONSTRUCT LIMITED
    • ISSN: 0017-4653

Subject/Index Terms

Filing Info

  • Accession Number: 00137743
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Apr 13 1977 12:00AM