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Performance of the Swellex bolt in hard and soft rocks
Luleå tekniska universitet.
Jacobson & Widmark AB.
1999 (English)In: Rock support and reinforcement practice in mining: proceedings of the international symposium on ground support, Kalgoorlie, Western Australia, 15-17 March, 1999 / [ed] Ernesto Villaescusa; Christopher R. Windsor; Alan G. Thompson, Rotterdam: Balkema Publishers, A.A. / Taylor & Francis The Netherlands , 1999, p. 103-108Conference paper, Published paper (Refereed)
Abstract [en]

In general Swellex bolts strengthen the rock mass through a combination of friction and mechanical interlock at the rock-bolt interface. The anchoring mechanism of the Swellex bolt is actually different in hard and soft rocks. In hard rock, the secondary contact stress, induced by the mechanical interlock of the asperities at the borehole wall, plays a major role in the anchoring, whereas the primary contact stress, created by the bolt expansion does not contribute much. However, in soft rocks, it is the friction, and thus the primary contact stress, which determines the anchoring capacity of the bolt

Place, publisher, year, edition, pages
Rotterdam: Balkema Publishers, A.A. / Taylor & Francis The Netherlands , 1999. p. 103-108
National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-28574Local ID: 268609b0-38b8-11de-9b53-000ea68e967bISBN: 90-5809-045-0 (print)OAI: oai:DiVA.org:ltu-28574DiVA, id: diva2:1001774
Conference
International Symposium on Ground Support : 15/03/1999 - 17/03/1999
Note
Godkänd; 1999; 20090504 (andbra)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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Total: 42 hits
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