MAPPING AND MODELLING FRACTURES USING GROUND PENETRATING RADAR FOR ORNAMENTAL STONE ASSESSMENT AND RECOVERY OPTIMIZATION: TWO CASE STUDIES
Journal Title: UNKNOWN - Year 2017, Vol 32, Issue 4
Abstract
Rock mass is typically characterized by inherent fractures that cause natural blocks of rocks. Unplanned cutting of stone deposits in quarries may lead to over-producing waste (rock debris) or extracting unfit (fractured) stone blocks. This paper presents two case studies through the use of low and high frequency Ground Penetrating Radar (GPR) antennas to detect fractures in two benches of a quarry. In the first case study, a high frequency GPR antenna was used aiming to: (i) compare the GPR results with a map of the out-cropping fracture intensity in the bench surface, developed using the data of the GPR survey marks and interpolated by the Ordinary Kriging technique, and (ii) present how sub-vertical fractures can be numerically modelled in three dimensions from the GPR results. The second case study was focused on using a low frequency antenna to detect large aperture size of fracture surfaces as deep as possible in order to evaluate a deposit stratum before quarrying. This could be done through studying the reflections from a 3D cross-sectional GPR model and a 3D transparent GPR model. In the discussion section, an exploitation planning approach, based on modelling fractures as 3D surfaces, is theoretically and graphically proposed to optimize the stone production recovery. The two case studies showed that GPR is a successful tool for the assessment of ornamental stone deposits and a promising tool for recovery optimization.
Authors and Affiliations
Mohamed Elkarmoty, Camilla Colla, Elena Gabrielli, Sara Kasmaeeyazdi, Francesco Tinti, Stefano Bonduà, Roberto Bruno
Keywords
Related Articles
- EP ID EP30175
- DOI 10.17794/rgn.2017.4.7
- Views 173
- Downloads 3
SUBSURFACE MODELING AND UNCERTAINTY MODELS OF THE NEOGENE-QUATERNARY SEDIMENTS IN THE PART OF SAVA DEPRESSION BASED ON DIGITALIZATION OF LEGACY MAP DATA
Aim of the research was the accurate digitalization and subsurface modelling of the legacy data, namely paper-based geological maps. The research area covers approximately 1053 km2 and is located in Croatian part of Pann...
KATEGORIZACIJA PODZEMNIH RADOVA PO METANU
Podzemni rad, pri kojem nema ili su prisutne male količine metana postojećim postupkom kategorizacije, svrstava se u nemetanski režim rada. Teškoće pri definiranju izvorišta plina. posebice kada postoji mogućnost napajan...
ISTRAŽIVANJE I PROIZVODNJA UGLJIKOVODIKA U HRVATSKOJ
Organizirana istraživanja pojava "zemnog ulja" započeta su u XVI. stoljeću, a proizvodnja nafte sredinom XIX. stoljeća. Istražni prostor Republike Hrvatske podijeljen je na tri bazena: Panonski, Dinaride i Jadran. Najist...
IN MEMORIAM: prof. dr. sc. ANDREA BAČANI, dipl. ing. geol. (1954. – 2018.)
Naša draga i poštovana Andrea Baþani (roÿ. Župariü), redovita profesorica u trajnome zvanju Rudarsko-geološko-naftnoga fakulteta Sveuþilišta u Zagrebu, preminula je 24. veljaþe 2018. godine. Profesorica Andrea Baþani r...
METAL WASTE MANAGEMENT AND RECYCLING METHODS IN THE NUCLEAR POWER PLANT DECOMMISSIONING AND DISMANTLING PROCESS
Decommissioning and dismantlement of nuclear power plants (NPP) present a final phase of the nuclear power plant lifetime and essential part of an effective nuclear safety culture. While some countries are implementing n...