Analysis and Improvement of Oversize Goaf Backfill Engineering Based on Fuzzy Theory

For the mine of large goaf, there are many factors that affect the filling quality. In order to improve the filling quality, it is necessary to identify the factors that have a significant impact. In this paper, the fuzzy mathematical method was used to analyze the five main factors (PC32.5cement sa...

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Bibliographic Details
Main Authors: Cao, G. (Author), Deng, D. (Author), Fan, J. (Author), Liang, Y. (Author), Ma, Y. (Author), Wang, R. (Author)
Format: Article
Language:English
Published: MDPI 2023
Subjects:
Online Access:View Fulltext in Publisher
View in Scopus
LEADER 01856nam a2200289Ia 4500
001 10.3390-app13095235
008 230529s2023 CNT 000 0 und d
020 |a 20763417 (ISSN) 
245 1 0 |a Analysis and Improvement of Oversize Goaf Backfill Engineering Based on Fuzzy Theory 
260 0 |b MDPI  |c 2023 
856 |z View Fulltext in Publisher  |u https://doi.org/10.3390/app13095235 
856 |z View in Scopus  |u https://www.scopus.com/inward/record.uri?eid=2-s2.0-85159287513&doi=10.3390%2fapp13095235&partnerID=40&md5=d8173e050e8b779d5d5f22efe25fe69e 
520 3 |a For the mine of large goaf, there are many factors that affect the filling quality. In order to improve the filling quality, it is necessary to identify the factors that have a significant impact. In this paper, the fuzzy mathematical method was used to analyze the five main factors (PC32.5cement sand ratio, slurry concentration, number of slurry lowering, dehydration and drainage, and tailing particle size grading) affecting the filling quality. The priority of each influence factor was calculated, and the priority set was established. It is found that the slurry launching point and particle size grading of the tailings have an obvious effect on filling quality. After increasing the slurry launching point and optimizing the particle size grading, the strength and uniformity of the filling body are improved. © 2023 by the authors. 
650 0 4 |a backfill 
650 0 4 |a ecological environment 
650 0 4 |a evaluation factor 
650 0 4 |a fuzzy math 
650 0 4 |a hazardous waste treatment 
650 0 4 |a membership matrix 
650 0 4 |a oversize goaf 
700 1 0 |a Cao, G.  |e author 
700 1 0 |a Deng, D.  |e author 
700 1 0 |a Fan, J.  |e author 
700 1 0 |a Liang, Y.  |e author 
700 1 0 |a Ma, Y.  |e author 
700 1 0 |a Wang, R.  |e author 
773 |t Applied Sciences (Switzerland)