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:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00174653
• 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

• TRT Terms: Boreholes; Clay; Cores (Specimens); Depth; Drilling; Mudstones; Permeability; Photography; Surveys
• Uncontrolled Terms: Photographic surveys; Site investigation
• Geographic Terms: United Kingdom
• Old TRIS Terms: Core drilling
• ITRD Terms: 5711: Bore hole; 4177: Clay; 5700: Core (boring); 6499: Depth; 3871: Drilling; 5921: Permeability; 6751: Photography; 5722: Site investigation; 8119: United kingdom
• Subject Areas: Geotechnology; Highways; I41: General Soil Surveys;

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