DRILLING TRACTORS FOR BENCH DRILLING FACILITIES AND PUBLIC BUILDINGS (PART II)

BORRTRAKTORER FOER PALLBORRNING

This report shows results of tests of drilling tractors. 17 tractors were tested concerning the capacity, direction instruments, hole deviation, need of air, noise and occupational safety. The following results were obtained: (1) the pneumatic double-arm tractors had the highest operating capacity (2) the direction instruments worked satisfactorily (3) the holes tended to deviate from the adjusted direction at the level of six metres. This is valid for all tractors (4) the need of air given by the manufacturer was for some machines rather on the low side (5) the noise measurements showed a sound level between 108 and 114 db (a). When selecting a drilling tractor the following factors should be taken into consideration: strength, service organization, repairs and hire market. (TRRL)

  • Availability:
  • Corporate Authors:

    Swedish National Road Administration

    Fack S-10220
    Stockholm 12,   Sweden 
  • Publication Date: 1979-7

Language

  • Swedish

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: 101 p.
  • Serial:
    • Strade
    • Publisher: Casa Editrice la fiaccola
    • ISSN: 0373-2916

Subject/Index Terms

Filing Info

  • Accession Number: 00319620
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Report/Paper Numbers: BP117 Monograph
  • Files: ITRD, TRIS
  • Created Date: Jan 19 1981 12:00AM