This thesis identifies the geotechnical parameters of the Antalya karstic foundation rocks
(travertine/tufa), which are highly variable in nature, by means of geological observations,
geotechnical site investigations, and field and laboratory geomechanics tests to examine
karstic (mainly tufa) rock mass behavior. Several geotechnical parameters such as
porosity, seismic wave velocity, uniaxial compressive strength, Young&rsquo / s modulus, tensile
strength, etc. that are thought to have significant influence on rock mass behavior have
been tested and statistically analyzed. Principal component analysis and multiple linear
and non-linear regression analyses have been carried out in order to reveal correlations
between the geotechnical parameters tested. Porosity has been statistically determined to
be one of the major parameters governing the strength of the Antalya tufa rock mass.
Intact rock failure criteria, among which Bieniawski&rsquo / s criterion has been proven to be
more appropriate for each tufa type (phytoherm framestone, phytoherm boundstone,
microcrystalline tufa, phytoclast tufa and intraclast tufa) along with the Antalya tufa rock
mass have been determined from the experiments. GSI rock mass classification of the
Antalya tufa rock mass, whose GSI value was recommended between 20± / 5 and 75± / 5, has
been attempted to be used in engineering design. Furthermore, the depth and dimension of
the karstic cavities and fractures have been investigated by the geophysical tests, surface
geological survey and subsurface investigations (borings and observation pits).
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/12615126/index.pdf |
| Date | 01 October 2012 |
| Creators | Sopaci, Evrim |
| Contributors | Akgun, Haluk |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | Ph.D. Thesis |
| Format | text/pdf |
| Rights | Access forbidden for 1 year |
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