Interpreting Temperature Based Discontinuity and Roughness of Rock Surfaces by Using Photogrammetric Technique

Year 2017, , 206 - 213, 01.11.2017

Abdullah Harun İncekara , Dursun Zafer Şeker , Celil Serhan Tezcan Erkan Bozkurtoglu , Cem Gazioğlu

https://doi.org/10.30897/ijegeo.348806

Cited By: 1

Abstract

The discontinuity and roughness
properties of the rocks can be used to obtain information on surface
characterization. In this study, it was investigated whether the discontinuity
and roughness properties of the rock structure are related to the temperature
of the surface. Selected object which is located at Istanbul Technical
University Ayazaga Campus has approximately dimensions of 3 m x 1 m. The
discontinuity regions on the object and the areas which are rougher than their
surroundings are clearly identifiable by visual interpretation. 3D model of
rock surface was produced by integrating photographs and 12 control points
which were homogeneously distributed on the object in order to reflect the
surface realistically. The temperature of the control points marked on the
surface were measured by using an infrared thermometer with non-contact
measuring capability. These values were used as the basic data to show the
temperature distribution over the entire surface. Temperature distribution map
with 6 classes representing the temperature range was produced by using IDW
interpolation method in a commercial GIS software. The temperature distribution
map was overlapped on the 3D object model produced by means of RGB photographs
for comparison with the 3D model produced by the thermal images of the same
surface. The temperature distribution in the discontinuity regions that can be
clearly seen as rough was examined and obtained results proved that there is a
strong relationship between roughness and temperature of the rock surfaces.

Keywords

Interpolation, Photogrammetry, Rock, Roughness, Temperature

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