SEISMIC DEFORMATIONS IN AN EARLY CHRISTIAN MONASTERY IN THE AREA OF DJANAVARA, VARNA, BULGARIA. PART 1: RESEARCH METHODS
A.M. Korzhenkov1, A. Minchev2, V. Tenekedjiev2, A.N. Ovsyuchenko1, O. Dimitrov3, A.S. Larkov1, E.A. Rogozhin1, B. Ranguelov4, A.A. Strelnikov1
1 Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia
2 Varna Regional Museum of History, Varna, Bulgaria
3 Institute of Oceanology “Fridtjof Nansen”, Bulgarian Academy of Sciences, Varna, Bulgaria
4 Mining and Geological University, Sofia, Bulgaria
Corresponding author: A.M. Korzhenkov, e-mail: korzhenkov@ifz.ru
Abstract. Archeoseismological studies of the ruins of the Djanavara monastery complex (Varna, Bulgaria) have been completed. Complicated character of accumulated destructions has demanded different methods of archeoseismological investigations. Their description is a content of the first part of the paper. There were considered different types of seismic deformations of building constructions caused by surface ruptures and displacement of building elements along them, as well as secondary deformations – when destructions and damages in building constructions occurred in result of the strong seismic oscillations radiated from a distant source. There are discussed possibilities of interpretation of peculiarities of the destructions as the kinematic indicators in modern building constructions and archeological objects. There are in the paper the examples of different types of destructions and collapse of the constructions, tilts and rotations of building elements, as well as displacements without rotation. There are discussed possibilities of location of earthquake epicenter according to data of orientations of collapse, methods of dating and seismic event parameterization. Results of use of considered methods for a study of ruins of Djanavara Cloister complex is in the second part of the paper.
Keywords: seismic deformations, archeoseismology, methods of archeoseismological investigations, kinematic indicators, early-Christian Cloister, Djanavara, Varna, Bulgaria
About the authors
KORZHENKOV Andrey Mikhailovich – Schmidt Institute of Physics of the Earth, Russian Academy of Sciences. Russia, 123242, Moscow, Bolshaya Gruzinskaya st., 10-1. E-mail: korzhenkov@ifz.ru
MINCHEV Alexander – Varna Regional Museum of History. Bulgaria, 9000, Varna, Maria Louisa Blvd., 41. E-mail: al_minchev@abv.bg
TENEKEDJIEV Vassil – Varna Regional Museum of History. Bulgaria, 9000, Varna, Maria Louisa Blvd., 41. E-mail: vaten21@gmail.com
OVSYUCHENKO Alexander Nikolaevich – Schmidt Institute of Physics of the Earth, Russian Academy of Sciences. Russia, 123242, Moscow, Bolshaya Gruzinskaya st., 10-1. E-mail: ovs@ifz.ru
DIMITROV Orlin – Institute of Oceanology “Fridtjof Nansen”, Bulgarian Academy of Sciences. Bulgaria, 9010, Varna, blvd. Osmi Primorski polk No. 137, entr. B, bld. 3, ap. 28. E-mail: ovdimitrov @ io-bas, ovdimitrov@gmail.com
LARKOV Alexander Sergeevich – Schmidt Institute of Physics of the Earth, Russian Academy of Sciences. Russia, 123242, Moscow, Bolshaya Gruzinskaya st., 10-1. E-mail: las119@yandex.ru
ROGOZHIN EvgenyAleksandrovich – Schmidt Institute of Physics of the Earth, Russian Academy of Sciences. Russia, 123242, Moscow, Bolshaya Gruzinskaya st., 10-1. E-mail: eurog@ifz.ru
RANGUELOV Boyko – St. Ivan Rilski Mining and Geological University. Bulgaria, 1700, Sofia, str. Boyan Kamenov, Studentski Grad. E-mail: branguelov@gmail.com
STRELNIKOV Andrey Andreevich – Schmidt Institute of Physics of the Earth, Russian Academy of Sciences. Russia, 123242, Moscow, Bolshaya Gruzinskaya st., 10-1. E-mail: aas@ifz.ru
Cite this article as: Korzhenkov A.M., Minchev A., Tenekedjiev V., Ovsyuchenko A.N., Dimitrov O., Larkov A.S., Rogozhin E.A., Ranguelov B., Strelnikov A.A. Seismic deformations in an early Christian monastery in the area of Djanavara, Varna, Bulgaria. Part 1: Research methods, Voprosy Inzhenernoi Seismologii (Problems of Engineering Seismology). 2020. V. 47, No. 4. P. 72–91. [in Russian]. https://doi.org/10.21455/VIS2020.4-5
English translation of the article will be published in Seismic Instruments, ISSN: 0747-9239 (Print) 1934-7871 (Online), https://link.springer.com/journal/11990