IMPROVEMENT ON MECHANICAL EXECUTION FOR INCLINED SHAFTS

DOI

Bibliographic Information

Other Title
  • 機械化施工による斜坑掘削の改善について

Description

Okukiyotsu No.2 Hydro Power Plant is designed as a pumped storage power plant with an effective head of 470m, maximum working water flow 154m3/s, and maximum output 600MW. The penstock is divided into the upper stage portion of excavation with diameter 6.60m, extension about 400m, and gradient 5ldegrees; and the lower with diameter 5.30m, extension about 260m, and gradient 51degrees. For the upper stage portion, a pilot shaft of 2.7m×2.7m was excavated with an Alimak Climber. For the lower, the raise drilling method was adopted. The pilot hole diameter was 270mm and the reaming hole diameter was 1470mm.

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Keywords

Details 詳細情報について

  • CRID
    1390282680378469376
  • NII Article ID
    130004387270
  • DOI
    10.11532/journalte1991.5.261
  • ISSN
    18849091
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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