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Analysis Of Rock Fragmentation By Using Powersieve Software

The ability of blasting operations can be esteemed relying upon the reason on the purpose in various ways. It depends whether blasting is done in mineralized or the sterile zone in mining operations. In mineralized zone, the primary stage of the general comminution process is blasting and its purpos...

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Main Author: Ragunathan, Logatharan
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2017
Subjects:
T Technology
TA401-492 Materials of engineering and construction. Mechanics of materials
Online Access:http://eprints.usm.my/52298/1/Analysis%20Of%20Rock%20Fragmentation%20By%20Using%20Powersieve%20Software_Logatharan%20Ragunathan_B1_2017.pdf
http://eprints.usm.my/52298/
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spelling my.usm.eprints.52298 http://eprints.usm.my/52298/ Analysis Of Rock Fragmentation By Using Powersieve Software Ragunathan, Logatharan T Technology TA401-492 Materials of engineering and construction. Mechanics of materials The ability of blasting operations can be esteemed relying upon the reason on the purpose in various ways. It depends whether blasting is done in mineralized or the sterile zone in mining operations. In mineralized zone, the primary stage of the general comminution process is blasting and its purpose is to produce a specific fragment size appropriate for succeeding ore handling and mineral processing (Hudson, 1993) .Usually, these means are based on evaluation fragment size consequential from blast (J.Aler, J.Mouza Du, M.Arnould, 1996). There are various factors that affect the fragmentation of granite rocks. These can be divided into controlled and uncontrolled factors. The controllable factors such as burden, spacing, bench height, powder factor, sub-drilling, stemming, sequence of blast initiation and diameter of holes. The uncontrollable concern more towards geological structure of rocks. (Orica, Safe and Efficient Blasting in Quarries, 2008). In this research the main concern is more towards controlled factors. Point load test carry out on rock samples to make sure that the strength and geological structure is constant in the area selected to be blasted for purpose of this research. The most common factor used to state a fragmentation of blasting is ‘powder factor’ (Rizza, 2017) .However, in this research, blasting performance is analysed with other factors such as relative bulk strength and type of detonation. The practical part of the research was carried out at Batu Tiga Quarry (BTQ) Masai, Johor. This research is divided into three stages, (1) site observation, (2) data analysis and (3) sample testing. Site observation recognizes what is the value of powder factor perfect to be utilized the condition and geographical structure on research area was observed. In data analysis, the images of muck piles were captured, the images are then transferred into the PowerSieve software. PowerSieve software used to perform analyses and evaluates the pictures taken and get the fragmentation distribution, cumulative passing percentage and cover area percentage. The sample testing involves point load test on rock samples collected from blast area to determine the strength of the rocks. The analysis shows that electronic detonation produces a better fragmentation compared to non-electric detonation. In the meantime, explosive with high relative bulk strength have better fragmentation. The usual factor which is used for fragmentation analysis is Powder Factor. In this research, two blast were included as a standardized matter to show the effects of Powder Factor on blast fragmentation. The point load test is taken to show the effect of uncontrollable factor on the blast fragmentation that is the strength of rocks. Universiti Sains Malaysia 2017-06-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/52298/1/Analysis%20Of%20Rock%20Fragmentation%20By%20Using%20Powersieve%20Software_Logatharan%20Ragunathan_B1_2017.pdf Ragunathan, Logatharan (2017) Analysis Of Rock Fragmentation By Using Powersieve Software. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Bahan Sumber Mineral. (Submitted)
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic T Technology
TA401-492 Materials of engineering and construction. Mechanics of materials
spellingShingle T Technology
TA401-492 Materials of engineering and construction. Mechanics of materials
Ragunathan, Logatharan
Analysis Of Rock Fragmentation By Using Powersieve Software
description The ability of blasting operations can be esteemed relying upon the reason on the purpose in various ways. It depends whether blasting is done in mineralized or the sterile zone in mining operations. In mineralized zone, the primary stage of the general comminution process is blasting and its purpose is to produce a specific fragment size appropriate for succeeding ore handling and mineral processing (Hudson, 1993) .Usually, these means are based on evaluation fragment size consequential from blast (J.Aler, J.Mouza Du, M.Arnould, 1996). There are various factors that affect the fragmentation of granite rocks. These can be divided into controlled and uncontrolled factors. The controllable factors such as burden, spacing, bench height, powder factor, sub-drilling, stemming, sequence of blast initiation and diameter of holes. The uncontrollable concern more towards geological structure of rocks. (Orica, Safe and Efficient Blasting in Quarries, 2008). In this research the main concern is more towards controlled factors. Point load test carry out on rock samples to make sure that the strength and geological structure is constant in the area selected to be blasted for purpose of this research. The most common factor used to state a fragmentation of blasting is ‘powder factor’ (Rizza, 2017) .However, in this research, blasting performance is analysed with other factors such as relative bulk strength and type of detonation. The practical part of the research was carried out at Batu Tiga Quarry (BTQ) Masai, Johor. This research is divided into three stages, (1) site observation, (2) data analysis and (3) sample testing. Site observation recognizes what is the value of powder factor perfect to be utilized the condition and geographical structure on research area was observed. In data analysis, the images of muck piles were captured, the images are then transferred into the PowerSieve software. PowerSieve software used to perform analyses and evaluates the pictures taken and get the fragmentation distribution, cumulative passing percentage and cover area percentage. The sample testing involves point load test on rock samples collected from blast area to determine the strength of the rocks. The analysis shows that electronic detonation produces a better fragmentation compared to non-electric detonation. In the meantime, explosive with high relative bulk strength have better fragmentation. The usual factor which is used for fragmentation analysis is Powder Factor. In this research, two blast were included as a standardized matter to show the effects of Powder Factor on blast fragmentation. The point load test is taken to show the effect of uncontrollable factor on the blast fragmentation that is the strength of rocks.
format Monograph
author Ragunathan, Logatharan
author_facet Ragunathan, Logatharan
author_sort Ragunathan, Logatharan
title Analysis Of Rock Fragmentation By Using Powersieve Software
title_short Analysis Of Rock Fragmentation By Using Powersieve Software
title_full Analysis Of Rock Fragmentation By Using Powersieve Software
title_fullStr Analysis Of Rock Fragmentation By Using Powersieve Software
title_full_unstemmed Analysis Of Rock Fragmentation By Using Powersieve Software
title_sort analysis of rock fragmentation by using powersieve software
publisher Universiti Sains Malaysia
publishDate 2017
url http://eprints.usm.my/52298/1/Analysis%20Of%20Rock%20Fragmentation%20By%20Using%20Powersieve%20Software_Logatharan%20Ragunathan_B1_2017.pdf
http://eprints.usm.my/52298/
_version_ 1731226347371495424
score 13.211869

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