Environmental Engineering Reference
In-Depth Information
The relationship between P-wave velocities
and thermal conductivity coefficient is of a
concave polynomial character as given in Figure 12.
Figure 13 depicts the linear relationship between
P-wave velocity-dry and P-wave velocity-saturated
rocks.
Dry Unite Weight vs UCS
y = 13.949x - 206.35
R 2 = 0.9405
200
150
100
50
0
4
conclUsion
0
5
10
15
20
25
30
Dry Unit Weight (kN/m 3 )
The Mount erciyes region comprises an area in
the range of about 30,000 km 2 . There are several
rock types such as basalt, andesite, pumice,
ignimbrite and tuff in this region. These rocks
are mined in more than a hundred quarries and
used construction purposes. in this study several
geotechnical parameters related to these rocks are
determined in the laboratory of our university.
There have been found good relationship between
these products such as P-wave velocities versus
Ucs, P-wave velocities versus thermal conductiv-
ity coefficient, density versus porosity, Ucs versus
thermal conductivity coefficient, density versus
Ucs and P-wave velocities-dry versus P-wave
velocities-saturated. These parameters show these
rocks quite suitable for construction purposes espe-
cially the thermal conductivity coefficient hints to
the fact that most of these rocks have a property
for energy saving in case being used in house con-
structions. Further investigations are necessary to
be carried out for more reliable conclusion.
Figure 11.
Relationship between dry unit weight
and Ucs.
P-wave velocity vs Thermal Conductivity Coefficient
y = -1E-10x 3 + 1E-06x 2 - 0.0034x + 4.024
R 2 = 0.3833
1.200
1.000
0.800
0.600
0.400
0.200
0.000
0
1000
2000
3000
4000
5000
P-wave velocity-dry (m/s)
Figure 12. Relationship between P-wave porosity and
thermal conductivity coefficient.
P-wave velocity-dry vs P-wave velocity-saturated y = 1.331x - 1042.1
R 2 = 0.9812
6000
ReFeRences
5000
4000
aydan, Ö. & Ulusay, R. 2003. Geotechnical and geoen-
vironmental characteristics of man-made under-
ground structures in cappadocia, Turkey. Eng. Geol.
69:245-272.
ayrancı, B. 1969. Zur Petrologie und Geologie des erci-
yes Vulkangebietes bei kayseri—Zentral anatolien/
Turkei. Inaugural-Dr. Diss ., Universitat Wurzburg.
Batum, i. 1978. Geology and petrography of acigol and
Golludag volcanics at southwest of nevsehir (central
anatolia, (Turkey). Yerbilimleri (Publ. inst. earth sci.
hacettepeUniv.) 4, 50-69.
Besang, c., eckhardt, F.J., harre, W., kreuzer, h. &
Mueller, P. 1977. Radiometrische altersbestimmungen
an neogenen eruptivgesteinen der Turkei. Geol. Jahrb.
B 25, 3-36.
Bigazzi, G., Yegingil, Z., ercan, T., oddone, M. &
ozdogan, M. 1993. new data for the chronology of
central and northern anatolia by ¢ssion track dating
of obsidians. Bull. Volcanol . 55, 588-595.
Demir, Ö. 2008. Cappadocia, Cradle of History , 12th.
Revised edition, Pelin ofset, ankara. (in Turkish).
Druitt, T.h., Brenchley, P.J., Gokten, Y.e. & Francaviglia,
V. 1995. late Quaternary rhyolitic eruptions from the
acigolcomplex, central Turkey. J. Geol. Soc. (london)
152, 655-667.
3000
2000
1000
0
0
1000
2000
3000
4000
5000
P-wave velocity- dry (m/s)
Figure 13. Relationship between P-wave velocity-dry
and P-wave velocity-saturated.
velocities versus Ucs; porosity versus unit weight;
Ucs versus thermal conductivity coefficient; unit
weight-dry versus Ucs; P-wave velocities-dry
versus P-wave velocities-saturated. The correla-
tion coefficients R 2 given in the figures show good
relationship between given geotechnical param-
eters. The Figure 8 shows a positive linear relation
between P-wave velocities and Ucs. in Figure 9 is
seen a negative linear relationship between porosity
and unit weight-dry. Figure 10 gives a polynomial
relationship between Ucs and thermal conductiv-
ity coefficient. in Figure 11 is seen a linear rela-
tionship between unit weight-dry and Ucs.
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