The New Ulus Tunnel will be constructed within the andesitic terrain at
Hidirliktepe (Ankara). Excavation of the tunnel will be accomplished through blast
and drill method. Emprical methods will be consulted during the design of the
support systems as well as the slope of the portal rock face. Therefore it is essential
to perform detailed rock mass characterization studies.
In this thesis it is aimed to determine the rock mass characteristics in order
to design the rock slope of the portals and to assess the reliable support systems for
the tunnel. For this purpose laboratory tests and field investigations were conducted.
Field investigations involved detailed discontinuity measurements and borehole
drillings. In respect of laboratory tests / point load index, unit weight and uniaxial
compression strength tests were used.
The field and laboratory test results were utilized in the Rock Mass
Classification Systems (RMR, Q-system) in order to ascertain the rock mass
characteristics. By all accounts, necessary tunnel support systems were determined.
As for the portal areas, the rock face design was accomplished through kinematical
analyses. Consequently, no failure is expected at the portal rock slopes.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/12610304/index.pdf |
| Date | 01 December 2008 |
| Creators | Aksular, Irem |
| Contributors | Doyuran, Vedat |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | M.S. Thesis |
| Format | text/pdf |
| Rights | To liberate the content for public access |
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