Seismic Tomography and Surface Wave Analysis Based Methodologies on Evaluation of Geotechnical Properties of Volcanic Rocks： A Case Study

Economic development, industrialization and dense population in Trabzon City have caused residential construction to increase by 300% in the last decade. The settlement area is moun- tainous and covered with heavy vegetation. Thus, the steep-sided topography and heavy precipita- tion means floods an...

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Bibliographic Details
Published in:Journal of earth science (Wuhan, China) China), 2014-04, Vol.25 (2), p.348-356
Main Authors: Babacan, Ali Erden, Gelisli, Kenan, Ersoy, Hakan
Format: Article
Language:English
Subjects:
Biogeosciences
Case studies
Construction
Earth and Environmental Science
Earth science
Earth Sciences
Geochemistry
Geology
Geotechnical Engineering & Applied Earth Sciences
Geotechnics
Land
Plate tectonics
Regression analysis
Residential areas
Rocks
Seismology
Surface waves
Tomography
Volcanoes
地震层析成像
基础
岩土性质
岩石质量指标
案例
波分
火山岩
评价
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Summary:Economic development, industrialization and dense population in Trabzon City have caused residential construction to increase by 300% in the last decade. The settlement area is moun- tainous and covered with heavy vegetation. Thus, the steep-sided topography and heavy precipita- tion means floods and landslides are common and in areas with little flat land. Since the mass movements in some parts of city create an enormous danger for buildings, site selection for residen- tial areas becomes increasingly important. This paper describes geotechnical and seismic properties of Tertiary volcanic rock and establishes the link between these units and construction. In this study, refraction tomography and multichannel analysis surface wave methods were applied in order to seek the best construction site in the residential area. The results of the geophysical study were com- pared with the borehole applications. A series of geomechnical tests were carried out on the core samples. Following that, statistical correlations were conducted by regression analysis to evaluate re- lationships between measured parameters. Rock Quality Designation and weathering degree were also determined. The methodology defined in this investigation proves to be an appropriate ap- proach to determine geotechnical properties of the foundation rocks and soils and a proper guide on future geotechnical studies for other cities.
ISSN:1674-487X
1867-111X
DOI:10.1007/s12583-014-0417-7