Characterization of Rock Salt Response to Blasting using Terrestrial Laser Scanning Technology
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Authors
Aubertin, Jonathan D
Date
Type
thesis
Language
eng
Keyword
Remote Sensing , Rock Blasting , Rock Mechanics , Rock Salt , Underground Mining
Alternative Title
Abstract
This doctoral research project addresses some of the fundamental aspects for blast design methods in rock salt mines. An experimental field work protocol was devised based on the use of single hole blast (SHB) tests to quantify blasting characteristics in rock salt. Terrestrial laser scanner (TLS) surveys were implemented to capture the shape of SHB craters and enhance objectivity of the reporting methodology. This was done through large scale field testing carried out at three underground rock salt mines. A crater shape model in the form of a power law equation is proposed to define crater breakouts measured through field work. Rock salt characteristic mechanical properties were further analyzed in light of observed field measurements. The analysis led to the definition of a complementary cratering mechanism, due to the interaction between emitted and reflected pressure waves, to describe rock salt blasting behaviour. A semi-iterative procedural workflow is proposed to derive site specific blast design guidelines in rock salt mines. Practical applications of this procedure are presented and discussed, together with a few additional aspects that can help develop a more systematic and global method for optimizing blast patterns in rock salt mines .
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Queen's University's Thesis/Dissertation Non-Exclusive License for Deposit to QSpace and Library and Archives Canada
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Copying and Preserving Your Thesis
This publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.
ProQuest PhD and Master's Theses International Dissemination Agreement
Intellectual Property Guidelines at Queen's University
Copying and Preserving Your Thesis
This publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.