Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
The role of crystalline rock for disposal of high-level radioactive waste (HLW)
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
El-Tekno AB.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-1365-8552
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-2845-4536
2015 (English)In: Vol. 15, 526-535 p.Article in journal (Refereed) Published
Abstract [en]

The stress conditions in the host rock of HLW repositories, altered by construction and heat generated by the waste can cause large changes in groundwater flow, and failure of the repository. These shortcomings reduce the barrier role of the rock and the required effective isolation of HLW has to be provided by engineered barriers of which clay-embedded metal canisters are most important. The paper describes the performance of the nearfield rock of HLW packages according to two types of repositories: very long subhorizontal holes with large diameter (1.9 m) bored or blasted at 400-600 m depth, and bored 4 km deep holes with clay/concrete seals in the upper 2 km parts and HLW packages separated by clay/concrete seals in the lower 2 km parts. The most important difference between the two concepts is the much higher groundwater transmissivity of the rock in the shallow repository. A common feature is the need for rock support by filling the space between waste containers and rock with clay mud after installing the containers in shallow repositories, and by keeping the holes in deep repositories filled with clay mud from the start of boring the holes and throughout the installation of clay/concrete seals. Focus is on the role of rock discontinuities on the hydraulic and mechanical performances of the repository host rock at construction and under seismic and tectonic impact. Comparison of the two concepts shows that the one implying deep-disposal is superior but requires preparative steps in the waste placement phase.

Place, publisher, year, edition, pages
2015. Vol. 15, 526-535 p.
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-34640DOI: 10.1016/j.proeps.2015.08.070Local ID: 8e69a869-3e43-4978-b054-094ebebee8ebOAI: oai:DiVA.org:ltu-34640DiVA: diva2:1007891
Conference
World Multidisciplinary Earth Sciences Symposium : 07/09/2015 - 11/09/2015
Note
Validerad; 2015; Nivå 1; 20150720 (tinyan); Konferensartikel i tidskriftAvailable from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-10-19Bibliographically approved

Open Access in DiVA

fulltext(385 kB)23 downloads
File information
File name FULLTEXT01.pdfFile size 385 kBChecksum SHA-512
69b198dcb921c745e2c1f938bb5f64085678bd0a004a8741b7c352b806227dd13459f6ae5ccaa5bdef9bf7ebc1ae5dc4199201ba5a7acc481f7494946232cb05
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Pusch, RolandKnutsson, SvenYang, Ting
By organisation
Mining and Geotechnical Engineering
Geotechnical Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 23 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 35 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf