ESTIMATION OF LAYER PARAMETERS USING VERY FAST SIMULATED ANNEALING METHOD IN ELECTRICALLY ANISOTROPIC MEDIA

Yıl 2019, Cilt: 7 Sayı: 3, 572 - 584, 15.09.2019

Kadir Bahadır Kara , Ertan Pekşen

Öz

In this study, electrical anisotropy was investigated
in horizontal and vertical directions. Strike and dip angles were examined with
theoretical examples regarding of anisotropy in the horizontal direction. A
square electrode array was preferred for this purpose. In general; when we plot
the apparent resistivity data calculated in an electrically isotropic medium in
the polar diagram, the shape of the apparent resistivity curve is circle.
However, a flower shape was observed in an electrically anisotropic medium
using apparent resistivity values in the polar diagram. In the second part of
this work, the electrical anisotropy in the vertical direction was
investigated. Schlumberger electrode array was used for examination of the
anisotropy in the vertical direction. In the case of electrical anisotropic
media, the theoretical data for layered structures were calculated and plotted.
Then we explained that how layer parameters estimated from the theoretical
curves using very fast simulated annealing method. Estimation of layer parameters
were calculated by the method proposed in this study using the vertical
electric sounding field data. Finally, these estimated results were compared
with the result predicted value using the particle swarm optimization method
with the same data set previously.

Anahtar Kelimeler

Electrical anisotropy, Very fast simulated annealing, Global optimization, Square array, Vertical electrical sounding

ELEKTRİKSEL YÖN BAĞIMLI ORTAMLARDA ÇOK HIZLI TAVLAMA BENZETİMİ YÖNTEMİ İLE TABAKA PARAMETRELERİNİN BELİRLENMESİ

Öz

Bu çalışmada
elektriksel anizotropi yatay ve düşey yönde incelenmiştir. Yatay yönde
anizotropinin doğrultu ve eğimle değişimi teorik örneklerle araştırılmıştır. Bu
amaç için kare elektrot dizilim kullanılmıştır. Genel olarak, elektriksel
izotrop ortamlarda hesaplanan görünür özdirenç verilerini kutupsal
koordinatlarda çizdiğimizde çember, 
anizotrop olan ortamlarda ise çiçek yapısı şekli gözlenmiştir. Bu
çalışmanın ikinci kısmında düşey yönde elektriksel anizotropi incelenmiştir.
Düşey yönde anizotropi incelenirken Schlumberger elektrot dizilimi
kullanılmıştır. Elektriksel olarak anizotrop olan ortamlarda tabakalı yapılar
için teorik veriler hesaplanmış ve çizilmiştir. Daha sonra teorik eğrilerden
tabaka parametreleri çok hızlı tavlama benzetimi yöntemi ile hesaplanmıştır.  Düşey elektrik sondaj arazi verilerinden
önerilen yöntem ile tabaka parametreleri kestirilmiştir. Sonuçlar daha önce
aynı veri setini kullanıp parçacık sürü optimizasyonu ile kestirilen tabaka
parametreleri ile karşılaştırılmıştır. 

Anahtar Kelimeler

Elektriksel anizotropi, Çok hızlı tavlama benzetimi, Global en iyileme, Kare dizilim, Düşey elektrik sondajı

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