International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B-YF. Istanbul 2004
permitted according to strong substructure and
obtaining drainage of surface water.
5. Inactive Zones: Topography is almost smooth.
Settlement should be permitted according to obtaining
drainage of surface water. Otherwise slips and flows
may occur.
9. RESULTS AND SUGGESTIONS
The study region is very risky because of its geological
formations, climatic attributes, and high amount of slopes. The
other reasons are:
1. Tectonic movements at the North Anatolian Fault
zone effects the landslides.
2. Inclination of the study area is very effective on the
landslides.
3 Because of Black Sea climate, amount of rain is very
much, and it increases the relation between water and
underground units.
4. Churn waters and irrigation waters make extra load on
the slopes.
Because the daily temperature difference is high,
water in splits freeze and melt.
6. Slope of the study area to effective on occurring
landslides.
Cn
T7 Quads
Te Les
Setilearcat
Cirazsv Plaros
Fit
Qa
le
Tk
Iy
Kock Fell Zones
Fast Degree
8ccoud Ozyicee
Third Degree
In:etve Zones
Figure 7. Risk Map of the Study Area
Before the suggestions for preventing landslides; it is useful to
investigate the expense for covering the damage of a landslide:
1 % Engineering, 1 % Nationalisation, 20 % Re-construction,
38 % Restore, 40 % Losses and indirect costs (Schuster, 1986).
It is clear that, expenses of preventing or correction of
landslides are more economical than the after-costs. Successful
precautions depend on complete and true knowledge. Risky
zones should examine technically.
For this region these suggestions should be exposed:
l- Analysis of stability of slides and slopes should be done.
2- Slopes by the roads should be planned carefully.
3- Drainage of surface and underground water should be
done.
4- Changing of plant cover should be prevented as far as
possible.
5- Rock mines should be far away from risky landslide
Zones.
6- Churn water should attach to sewer system.
7- Alternative irrigation methods should apply.
8- First degree zone should afforest.
9- Settlements should be constructed according to risk
coefficient.
10. REFERENCES
Akyürek, L, 1987. Türkiye Genel Toprak Amenajman
Planlamasi (, Kóy Hizmetleri Genel Müdürlügü, Ankara.
Atalay, |, 1985. Türkiye’nin Morfolojik ve Jeolojik
Ozelliklerinin Asinma, Tasinma ve Birikme Olaylarima Etkisi,
Orman Genel Müdürlügü Semineri, Burdur.
Atalay, 1. ve Bekaroglu, N., 1973. Heyelanlar ve Mühendislik
Uygulamalari, Karayollari Genel Müdürlügü Matbaasi, Ankara.
Karasahin, H., 1991. Erozyon Kontrolu ve Mera Islahi
Calismalan ve Bunun Heyelana Etkisi, Türkiye 1. Ulusal
Heyelan Sempozyumu, KTÜ, Trabzon, 27-29 Kasim, s.119-
128.
K.T.U, 1980. Dogu Karadeniz Heyelanlari. Tanimlanmasi ve
Analizi, Insaat ve Mimarlik Fakültesi, Trabzon.
Schuster, R., 1986. Landslide Dams: Processes, Risk and
Mitigation, American Society of Civil Engineers, New York.
Tarhan, F., 1991. Dogu Karadeniz Heyelanlarma Genel Bir
Bakis, Türkiye 1. Ulusal Heyelan Sempozyumu, KTU, Trabzon,
27-29 Kasim, s. 38-63.
www. fbe.ktu.edu.tr, 2003.
www. grafiksistemler.com.tr, 2003.
ACKNOWLEDGEMENT
The authors would like to thank to MESCIOGLU Ltd. Sti. for
their financial support to attend the congress.
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