dc.contributor.author |
Senthilkumar, M |
|
dc.contributor.author |
Senadhira, AMADM |
|
dc.contributor.author |
Giriwaksan, S |
|
dc.contributor.author |
Welideniya, HS |
|
dc.contributor.author |
Dharmaratne, PGR |
|
dc.contributor.editor |
Karunaratne, S |
|
dc.date.accessioned |
2022-06-23T08:57:48Z |
|
dc.date.available |
2022-06-23T08:57:48Z |
|
dc.date.issued |
2008-05 |
|
dc.identifier.citation |
Senthilkumar, M., Senadhira, A.M.A.D.M., Giriwaksan, S., Welideniya, H.S., & Dharmaratne, P.G.R. (2008). Tunnel design for fractured rocks and suitable support selection. In S. Karunaratne (Ed.), Proceedings of the 3rd Annual Conference on Mining for Sustainable Development – A Multidisciplinary Approach (pp. 9-12). Department of Earth Resources Engineering, University of Moratuwa. |
en_US |
dc.identifier.uri |
http://dl.lib.uom.lk/handle/123/18361 |
|
dc.description.abstract |
This research focused on design of a tunnel in highly fractured rocks, and to propose suitable support classes, based on the study carried out at the Upper
Kotmale Hydro Power project location. The necessity arises in order to cope up the
unpredictable changes in geological patterns which highly influence the continuity of
tunnel works. Present tunnelling method in fractured rocks need to be further
evaluated to suit the engineering geological patterns and rock types of the area. The
rock strength and the fracture intensity are assessed through field and laboratory
works, including tunnel mapping and joint intensity surveys. The suitable support class
selected based on Q-value system formulated by Nick Barton (Norway) in mid 70's.The
data and the borehole samples obtained from site location facilitated to propose a
proper support design, suitable to Sri Lankan geotechnical conditions. The variation in
the rock mass from unweathered to highly weathered, sound to heavily fractured along
a tunnel was accounted in selecting a suitable supporting method to avoid disastrous
consequences and to provide a secure working environment. The results of the study
were used to develop a model for tunnel design, and to propose modifications to the
existing support classes in fractured rocks at Upper Kotmale Hydro Power Project. And
it was understood Q-value evaluation could be more suitable than RMR, for Sri Lankan
terrain. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Department of Earth Resources Engineering |
en_US |
dc.subject |
Fracture |
en_US |
dc.subject |
Geotechnical |
en_US |
dc.subject |
Q-value |
en_US |
dc.subject |
RMR |
en_US |
dc.subject |
Tunnel |
en_US |
dc.title |
Tunnel design for fractured rocks and suitable support selection |
en_US |
dc.type |
Conference-Full-text |
en_US |
dc.identifier.faculty |
Engineering |
en_US |
dc.identifier.department |
Department of Earth Resources Engineeirng |
en_US |
dc.identifier.year |
2008 |
en_US |
dc.identifier.conference |
3rd Annual Conference on Mining for Sustainable Development - A Multidisciplinary Approach |
en_US |
dc.identifier.place |
Katubedda |
en_US |
dc.identifier.pgnos |
pp. 9-12 |
en_US |
dc.identifier.proceeding |
Proceedings of the 3rd Annual Conference on Mining for Sustainable Development - A Multidisciplinary Approach |
en_US |
dc.identifier.email |
senaka@earth.mrtac.lk |
en_US |