Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Underwater tunnel piercing in refurbishment of Akkats power station
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Byggvetenskap, Vattendragsteknik.
2010 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Akkats has suffered a number of incidents that were complicated to repair and led to frequent shutdowns. Its existing unit is to be replaced with two smaller units. Underwater tunnel piercing is needed when one of the units is to be put in operation. The open type of piercing is chosen, in which the tunnel and the gate shaft are pre-filled with water. Hydraulic model studies are made to examine involved hydraulic parameters. The deposit profile of the blasted rock in the stone pit and the upsurge in the gate shaft are strongly affected by the plug thickness and shaft water level. To reduce upsurge height, the reservoir and the shaft should have the same water level. A few countermeasures are discussed for upsurge suppression. The stone pit should be optimized for the countermeasure in question so as to reduce intake head losses and prevent the blasted rock from entering the tunnel.

sted, utgiver, år, opplag, sider
2010.
Emneord [en]
Akkats, refurbishment, lake tapping, underwater piercing
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-179773OAI: oai:DiVA.org:kth-179773DiVA, id: diva2:889432
Konferanse
ICOLD Annual Meeting and Symposium, May 2010, Hanoi, Vietnam
Merknad

QC 20160104

Tilgjengelig fra: 2015-12-25 Laget: 2015-12-25 Sist oppdatert: 2016-01-04bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Conference programme

Søk i DiVA

Av forfatter/redaktør
Yang, James
Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric

urn-nbn
Totalt: 1865 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf