Monitoring of Drill System Behavior for Water-Powered In-The-Hole (ITH) Drilling
A detailed understanding of the drilling system and the drilling control is required to correctly interpret rock mass conditions based on monitored drilling data. This paper analyses data from hydraulic in-the-hole (ITH) drills used in LKAB’s Malmberget mine in Sweden. Drill parameters, including pe...
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Online Access: | https://doi.org/10.3390/min7070121 |
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ftmdpi:oai:mdpi.com:/2075-163X/7/7/121/ 2023-08-20T04:07:55+02:00 Monitoring of Drill System Behavior for Water-Powered In-The-Hole (ITH) Drilling Rajib Ghosh Håkan Schunnesson Anna Gustafson agris 2017-07-17 application/pdf https://doi.org/10.3390/min7070121 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/min7070121 https://creativecommons.org/licenses/by/4.0/ Minerals; Volume 7; Issue 7; Pages: 121 drill monitoring technique hydraulic in-the-hole (ITH) drilling measurement while drilling (MWD) rock mass characterization drill system behavior Text 2017 ftmdpi https://doi.org/10.3390/min7070121 2023-07-31T21:10:14Z A detailed understanding of the drilling system and the drilling control is required to correctly interpret rock mass conditions based on monitored drilling data. This paper analyses data from hydraulic in-the-hole (ITH) drills used in LKAB’s Malmberget mine in Sweden. Drill parameters, including penetration rate, percussive pressure, feed pressure, and rotation pressure, are monitored in underground production holes. Calculated parameters, penetration rate variability, rotation pressure variability, and fracturing are included in the analysis to improve the opportunity to predict rock mass conditions. Principal component analysis (PCA) is used to address non-linearity and variable interactions. The results show that the data contain pronounced hole length-dependent trends, both linear and step-wise linear, for most parameters. It is also suggested that monitoring can be an efficient way to optimize target values for drill parameters, as demonstrated for feed force. Finally, principal component analysis can be used to transfer a number of drill parameters into single components with a more straightforward geomechanical meaning. Text Malmberget MDPI Open Access Publishing Minerals 7 7 121 |
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Open Polar |
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MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
drill monitoring technique hydraulic in-the-hole (ITH) drilling measurement while drilling (MWD) rock mass characterization drill system behavior |
spellingShingle |
drill monitoring technique hydraulic in-the-hole (ITH) drilling measurement while drilling (MWD) rock mass characterization drill system behavior Rajib Ghosh Håkan Schunnesson Anna Gustafson Monitoring of Drill System Behavior for Water-Powered In-The-Hole (ITH) Drilling |
topic_facet |
drill monitoring technique hydraulic in-the-hole (ITH) drilling measurement while drilling (MWD) rock mass characterization drill system behavior |
description |
A detailed understanding of the drilling system and the drilling control is required to correctly interpret rock mass conditions based on monitored drilling data. This paper analyses data from hydraulic in-the-hole (ITH) drills used in LKAB’s Malmberget mine in Sweden. Drill parameters, including penetration rate, percussive pressure, feed pressure, and rotation pressure, are monitored in underground production holes. Calculated parameters, penetration rate variability, rotation pressure variability, and fracturing are included in the analysis to improve the opportunity to predict rock mass conditions. Principal component analysis (PCA) is used to address non-linearity and variable interactions. The results show that the data contain pronounced hole length-dependent trends, both linear and step-wise linear, for most parameters. It is also suggested that monitoring can be an efficient way to optimize target values for drill parameters, as demonstrated for feed force. Finally, principal component analysis can be used to transfer a number of drill parameters into single components with a more straightforward geomechanical meaning. |
format |
Text |
author |
Rajib Ghosh Håkan Schunnesson Anna Gustafson |
author_facet |
Rajib Ghosh Håkan Schunnesson Anna Gustafson |
author_sort |
Rajib Ghosh |
title |
Monitoring of Drill System Behavior for Water-Powered In-The-Hole (ITH) Drilling |
title_short |
Monitoring of Drill System Behavior for Water-Powered In-The-Hole (ITH) Drilling |
title_full |
Monitoring of Drill System Behavior for Water-Powered In-The-Hole (ITH) Drilling |
title_fullStr |
Monitoring of Drill System Behavior for Water-Powered In-The-Hole (ITH) Drilling |
title_full_unstemmed |
Monitoring of Drill System Behavior for Water-Powered In-The-Hole (ITH) Drilling |
title_sort |
monitoring of drill system behavior for water-powered in-the-hole (ith) drilling |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2017 |
url |
https://doi.org/10.3390/min7070121 |
op_coverage |
agris |
genre |
Malmberget |
genre_facet |
Malmberget |
op_source |
Minerals; Volume 7; Issue 7; Pages: 121 |
op_relation |
https://dx.doi.org/10.3390/min7070121 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/min7070121 |
container_title |
Minerals |
container_volume |
7 |
container_issue |
7 |
container_start_page |
121 |
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1774719890609930240 |