Drilling and Preparation of Reusable, Long Range, Horizontal Bore Holes in Rock and in Gouge. : Vol. III. : A Development Plan to Extend Penetration Capability, Increase Accuracy, and Reduce Cost

The objective of this study is to assess horizontal drilling as an alternative to pilot tunneling in geological investigation prior to the design and construction of highway tunnels to identify means to increase the penetration capability and accuracy and decrease the cost of horizontal drilling. This volume evaluates the potential for improving horizontal drilling capability by: (a) more efficient use of existing equipment, modification of existing equipment, and adaption of equipment not previously employed for horizontal drilling and by (b) developing new horizontal drilling equipment and techniques. Within these guidelines, means are identified to decrease the cost and/or increase the performance capability of horizontal drilling. Development plans to implement these improvements are outlined and estimates of development costs are indicated. This is the third of three volumes. Volume I is published as FHWA-RD 75-95, subtitle: A State-of-the-Art Assessment. Volume II is published as FHWA-RD-75-96, subtitle: Estimating Manual for Time and Cost Requirements. /FHWA/

  • Record URL:
  • Corporate Authors:

    Foster-Miller Associates, Incorporated

    350 Second Avenue
    Waltham, MA  United States  02254
  • Authors:
    • Harding, J C
    • Mack Jr, W M
    • Still, W L
    • Tracy, N
  • Publication Date: 1976-5

Media Info

  • Media Type: Digital/other
  • Pagination: 291 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00190054
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWA-RD-75- 97 Final Rpt., FCP 35B2-042
  • Contract Numbers: DOT-FH-11-8486
  • Files: NTL, TRIS, USDOT
  • Created Date: May 26 1979 12:00AM