Illumination of contributing parameters of uneven break in narrow vein mine

Hyongdoo Jang, Sina Taheri, Erkan Topal, Youhei Kawamura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

One of the principal challenge facing the stope production in underground mining is the overbreak and underbreak (UB: uneven break). Although the UB features a critical economic fallout to the entire mining process, it is much inevitable and usually left as an unpredictable phenomenon in underground mines. The complex mechanism of UB must be examined to minimize the UB phenomenon. In this study, the contribution of ten primary UB causative parameters is scrutinized investigating a published UB prediction ANN model. The inputs (UB causative factors) contributions to the output (percentage of UB) of the ANN model were analyzed using Profile methodology (PM). The results PM revealed the essential importance of geological parameters to UB phenomenon as the calculated contributions of adjusted Q-rate (GAQ) and average horizontal to vertical stress ratio (GSK) are 20.48% and 18.12% respectively. Also, the trends of the other eight UB causative factors were investigated. The findings of this study can be used as a reference in stope design and reconciliation processes to maximize the productivity of the underground mine.

Original languageEnglish
Title of host publicationProceedings of the 28th International Symposium on Mine Planning and Equipment Selection, MPES 2019
EditorsErkan Topal
PublisherSpringer
Pages457-466
Number of pages10
ISBN (Print)9783030339531
DOIs
Publication statusPublished - 2020
Event28th International Symposium on Mine Planning and Equipment Selection, MPES 2019 - Perth, Australia
Duration: Dec 2 2019Dec 4 2019

Publication series

NameSpringer Series in Geomechanics and Geoengineering
ISSN (Print)1866-8755
ISSN (Electronic)1866-8763

Conference

Conference28th International Symposium on Mine Planning and Equipment Selection, MPES 2019
CountryAustralia
CityPerth
Period12/2/1912/4/19

Keywords

  • ANN
  • Narrow vein
  • Overbreak
  • Underbreak

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials

Fingerprint Dive into the research topics of 'Illumination of contributing parameters of uneven break in narrow vein mine'. Together they form a unique fingerprint.

Cite this