Yazar "Dogan, Kemal" seçeneğine göre listele

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    ELECTRICAL RESISTIVITY MEASUREMENT FOR COUNTRY ROCK DISTURBANCE OF SHALLOW RAILWAY TUNNEL
    (INT SCIENTIFIC CONFERENCE SGEM, 2009) Gokay, M. Kemal; Dogan, Kemal
    The roof of the tunnel and sidewalls are especially influenced by the tunnels shape and dimension. Rock engineering mostly concentrates the reasons of these disturbances to decide if they are stress induced or discontinuity governing deformations. In this study, it has been concentrated on two shallow tunnels which are 35-90 meters below the ground surface. They were opened in limestone rock mass containing lamination and cavities as well. Electrical resistivity measurements were used to determine the weakness zones around these tunnels. Extension of the weakness zone demonstrated that the disturbance around the tunnels were rock mass controlled instate of stress induced fracturing.
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    ELECTRICAL RESISTIVITY MEASUREMENT TO ANALYZE THE EFFECTS OF ROCK BLASTING
    (INT SCIENTIFIC CONFERENCE SGEM, 2009) Gokay, M. Kemal; Dogan, Kemal; Kekec, Bilgehan
    Electrical resistivity measurements have been used in engineering for many purposes. In this study, blasting effects on the back of blasted holes at a quarry bench have been put under evaluation. Earth resistivity of bench rock, limestone, was measured before and after blasting by electrical resistivity equipment with the same electrode positions. The resultant resistivity graphs demonstrate the blasting performed in this study influence slightly the rock resistivity of the rock mass situated 4 m from the blasted boreholes. However, after 3 group of blasting, each had 8 or 9 blasted boreholes, repeated near the tested rock, it was determined that due to fissure and micro scale crack separation rock mass resistivity had been changed more remarkably.
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    ELECTRICAL RESISTIVITY VARIATION IN COAL BEARING STRATA; SLOPE FAILURE ANALYSIS IN COAL MEASURES
    (INT SCIENTIFIC CONFERENCE SGEM, 2008) Dogan, Kemal; Gokay, M. Kemal
    Slope failure occurring at projected slope operations at open pit mines can lead the workers safety to dangerous positions. In some cases the rock disturbances which may be thought about that, they lead slope failures around the open pit mine operation develop physiological problems among the mine workers. The main aim of this work to determine if the conditions of critical slopes in open pit mines can be monitored through the electrical resistivity methods. The depths of sliding at selected slope were analyzed by using measured earth resistivity values for the defined purposes. Field studies at Ilgin Coal Mine near Konya city presented that electrical earth resisitivity measurements could be used to analyze the slope movements in coal mine.
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    STRUCTURAL DISTURBANCE ANALYSES AT SHALLOW DEPTH: SAMPLE CASE STUDY AT THE SURROUNDING OF SU LAW FACULTY BUILDING
    (INT SCIENTIFIC CONFERENCE SGEM, 2011) Dogan, Kemal; Gokay, M. Kemal
    It is aimed here to perform electrical resistivity measurements to define ground differentiation especially for 10-20 meters depth. This research purposed to evaluate the groundwater condition around Selcuk University, Law Faculty building groups in Alaaddin Keykubat campus. After the electrical resistivity tests, ground resistivity graphics were drawn for further researches on buildings' structural analyses. The results supplied several cross-sectional 2-D resistivity graphics which were used to understand the groundwater condition below the Law Faculty Buildings. This research was then lead also to evaluate the dry river embankment's water seepage below its sediments originated from Bozdag Mountain at North-West side of the Selcuk University Campus. Electrical resistivity tests performed especially concentrated on the dry river banks located around the Law Faculty Buildings. The results of this research are believed to supply valuable information to understand vertical deformation of the Faculty buildings by demonstrating groundwater flow direction passing under them. At the end of the tests the groundwater flow depth and its lateral distributions were also determined.