Evaluation of rock burst in deep coal mining by using forensic engineering

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Title: Evaluation of rock burst in deep coal mining by using forensic engineering
Authors: Oraee-Mirzamani, B
Zandi, S
Item Type: Conference Paper
Abstract: Rock bursts remain an important problem in longwall coal mining. These bursts are due to a sudden and severe failure of rocks from a high stress concentration in deep underground excavations that occur with the instantaneous release of strain energy stored in the rocks. They can potentially cause irrecoverable damage to equipment and personnel, thus accurate rock burst prediction and control is expected to be carried out by the mine design engineer. As a result, this can constitute major challenges for said engineer. In this paper, forensic engineering has been used to evaluate the possibility and extent of rock bursts in deep coal mining. For this purpose, established mining engineering principles, including factors influencing the severity of rock bursts, have been incorporated in the forensic engineering technique. The analyses took place in five steps: • Assessment of regional and local conditions prior to the event • Assessment of conditions after the event • Hypothesize plausible ways in which pre-event conditions can become post-event ones • Search for evidence that either denies or supports various hypotheses • Apply engineering knowledge to relate the various facts and evidence into a cohesive scenario of how the event may have occurred. The paper concludes by demonstrating a method for predicting rock bursts and preventing their re-occurrence. The methodology used in this paper, together with the results obtained, can serve as useful tools for the coal mine design engineer in the primary evaluation of rock burst potential in underground coal mines.
Issue Date: 28-Jul-2015
Date of Acceptance: 1-Jun-2015
URI: http://hdl.handle.net/10044/1/27237
Publisher: ICGCM
Journal / Book Title: 34th International Conference on Ground Control in Mining
Copyright Statement: © 2015 the Authors
Conference Name: 34th International Conference on Ground Control in Mining
Keywords: Global Stability
Forensic Engineering
Pillar Design
Publication Status: Published
Start Date: 2015-07-28
Finish Date: 2015-07-30
Conference Place: Morgantown, WV
Appears in Collections:Centre for Environmental Policy
Faculty of Natural Sciences

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