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Blast monitoring at Diavik Diamond M...
~
Welz, Marek.
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Blast monitoring at Diavik Diamond Mines Inc. to protect fish habitat.
Record Type:
Language materials, printed : Monograph/item
Title/Author:
Blast monitoring at Diavik Diamond Mines Inc. to protect fish habitat./
Author:
Welz, Marek.
Description:
107 p.
Notes:
Source: Masters Abstracts International, Volume: 45-03, page: 1423.
Contained By:
Masters Abstracts International45-03.
Subject:
Biology, Ecology. -
Online resource:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR22405
ISBN:
9780494224052
Blast monitoring at Diavik Diamond Mines Inc. to protect fish habitat.
Welz, Marek.
Blast monitoring at Diavik Diamond Mines Inc. to protect fish habitat.
- 107 p.
Source: Masters Abstracts International, Volume: 45-03, page: 1423.
Thesis (M.Sc.)--University of Alberta (Canada), 2006.
Diavik Diamond Mines Inc. is conducting open pit and underground mining of kimberlites within close proximity of a large freshwater lake that supports populations of fishes and other aquatic organisms. As the principal method of excavation is through blasting; the resulting blast wave is expected to expose incubating fish eggs to peak particle velocities (PPVs) greater than guidelines suggested by the Department of Fisheries and Oceans (DFO). Blasts were monitored using specialised 4-component underwater sensors which measured the particle velocities and overpressures simultaneously. PPVs were related to mortality in fish eggs both in the lake and in a laboratory setting where blasting events were simulated. Standard blast monitoring techniques were used to analyse data and create scaled distance relations in order to predict the attenuation of PPVs. Results show that attenuation was greater than initially expected. Further analysis showed no changes in blasting effects as the pit deepened.
ISBN: 9780494224052Subjects--Topical Terms:
1017726
Biology, Ecology.
Blast monitoring at Diavik Diamond Mines Inc. to protect fish habitat.
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Source: Masters Abstracts International, Volume: 45-03, page: 1423.
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Diavik Diamond Mines Inc. is conducting open pit and underground mining of kimberlites within close proximity of a large freshwater lake that supports populations of fishes and other aquatic organisms. As the principal method of excavation is through blasting; the resulting blast wave is expected to expose incubating fish eggs to peak particle velocities (PPVs) greater than guidelines suggested by the Department of Fisheries and Oceans (DFO). Blasts were monitored using specialised 4-component underwater sensors which measured the particle velocities and overpressures simultaneously. PPVs were related to mortality in fish eggs both in the lake and in a laboratory setting where blasting events were simulated. Standard blast monitoring techniques were used to analyse data and create scaled distance relations in order to predict the attenuation of PPVs. Results show that attenuation was greater than initially expected. Further analysis showed no changes in blasting effects as the pit deepened.
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http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR22405
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