پديد آورندگان :
Mohammad Masoud، Samieinejad Department of Mining Engineering - Science and Research Branch - Islamic Azad University - Tehran , Navid، Hosseini Alaee Department of Mining Engineering - South Tehran Branch - Islamic Azad University - Tehran , Kaveh، Ahangari Department of Mining Engineering - South Tehran Branch - Islamic Azad University - Tehran
كليدواژه :
Rock mass , Structural characteristics , Short-range digital photogrammetry , Digital Image Processing , Laser imaging
چكيده لاتين :
Because of the important role of rock mass structural properties on its mechanical behavior,
determining the qualitative and quantitative properties of has been a subject of intense research.
In this regard, numerous techniques such as scanline surveying, cell mapping, and geologic
structure mapping have been proposed. However, applying such field surveying techniques
for rock mass properties involves spending substantial costs and times and high risks. Besides,
due to the errors induced by operations, measurements, systematic errors, etc., the results of
these techniques are not accurate and precise enough. Short-range digital photogrammetry
is an state-of-art technique applied for surveying rock mass characteristics. Through this
novel approach, rock mass surface is imaged, the obtained images are analyzed, and rock
mass characteristics are determined, and finally, the technique is validated by comparing the
obtained results with field surveys. In the present work, two digital photogrammetry based
methods including digital image processing and laser-based imaging are implemented in
rock mass characterization. The results show that short-range digital photogrammetry can
be effectively employed in rock mass structure characterization. Moreover, this approach,
unlike the existing traditional ones, involves low costs, high speed, and sufficiently accurate
and precise results.
