Hard-rock tunneling using pulsed electron beams: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Hard-rock tunneling using pulsed electron beams

Avery, R.T. / Keefe, D. / Brekke, T.L. / Finnie, I.

It has been demonstrated that intense sub-microsecond bursts of energetic electrons cause significant pulverization and surface spalling of a variety of rock types. The spall debris generally consists of sand, dust, and small flakes. If carried out at rapid repetition rate this can lead to a promising technique for increasing the speed and reducing the cost of underground excavation of tunnels, mines, and storage spaces. The conceptual design features of a Pulsed Electron Tunnel Excavator capable of tunneling approximately ten times faster than conventional drill/blast methods is presented.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Hard-rock tunneling using pulsed electron beams

Avery, R.T. / Keefe, D. / Brekke, T.L. / Finnie, I.

It has been demonstrated that intense sub-microsecond bursts of energetic electrons cause significant pulverization and surface spalling of a variety of rock types. The spall debris generally consists of sand, dust, and small flakes. If carried out at rapid repetition rate this can lead to a promising technique for increasing the speed and reducing the cost of underground excavation of tunnels, mines, and storage spaces. The conceptual design features of a Pulsed Electron Tunnel Excavator capable of tunneling approximately ten times faster than conventional drill/blast methods is presented.

Hard-rock tunneling using pulsed electron beams

Avery, R.T. / Keefe, D. / Brekke, T.L. / Finnie, I.

It has been demonstrated that intense sub-microsecond bursts of energetic electrons cause significant pulverization and surface spalling of a variety of rock types. The spall debris generally consists of sand, dust, and small flakes. If carried out at rapid repetition rate this can lead to a promising technique for increasing the speed and reducing the cost of underground excavation of tunnels, mines, and storage spaces. The conceptual design features of a Pulsed Electron Tunnel Excavator capable of tunneling approximately ten times faster than conventional drill/blast methods is presented.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

Hard-rock tunneling using pulsed electron beams

Additional title:

Durchtunnelung harter Gesteine mit gepulsten Elektronenstrahlen

Contributors:

Avery, R.T. (author) / Keefe, D. (author) / Brekke, T.L. (author) / Finnie, I. (author)

Published in:

IEEE Transactions on Nuclear Science ; 22 ; 1798-1801

Publication date:

1975

Size:

4 Seiten, 6 Bilder, 11 Quellen

DOI:

https://doi.org/10.1109/TNS.1975.4327995

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

ELEKTRONENSTRAHL , IMPULSBETRIEB , GESTEIN , BOHRUNG (BOHRLOCH) , BLOCKSCHALTBILD , ZEICHNUNG , TUNNEL

Similar titles

Hard rock tunneling

Burkholder, J.L. / Stephens, R. | Engineering Index Backfile | 1939

Electron Accelerator for Tunneling Through Hard Rock

R. T. Avery / D. Keefe | NTIS | 1975

Rock excavation by pulsed electron beams

Avery, R. / Keefe, D. / Brekke, T. | Tema Archive | 1976

Rock Excavation by Pulsed Electron BEAMS

R. T. Avery / D. Keefe / T. L. Brekke et al. | NTIS | 1976

Dustless Hard Rock Tunneling Methods

Scurlock, Homer / Giroux, Cody / Wasag, Michel | British Library Conference Proceedings | 2021