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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Main Authors: Daiqiang Deng, Guodong Cao, Yihua Liang, Jinkuan Fan, Runze Wang, Yunfan Ma
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/9/5235
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author Daiqiang Deng
Guodong Cao
Yihua Liang
Jinkuan Fan
Runze Wang
Yunfan Ma
author_facet Daiqiang Deng
Guodong Cao
Yihua Liang
Jinkuan Fan
Runze Wang
Yunfan Ma
author_sort Daiqiang Deng
collection DOAJ
description 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.
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spelling doaj.art-71a419f8fad3489692cb8ed216d07e972023-11-17T22:31:13ZengMDPI AGApplied Sciences2076-34172023-04-01139523510.3390/app13095235Analysis and Improvement of Oversize Goaf Backfill Engineering Based on Fuzzy TheoryDaiqiang Deng0Guodong Cao1Yihua Liang2Jinkuan Fan3Runze Wang4Yunfan Ma5College of Civil Engineering, Xiangtan University, Xiangtan 411105, ChinaCollege of Civil Engineering, Xiangtan University, Xiangtan 411105, ChinaIndustrial Development Research Center of Guizhou, Guizhou Institute of Technology, Guiyang 550003, ChinaCollege of Civil Engineering, Xiangtan University, Xiangtan 411105, ChinaCollege of Civil Engineering, Xiangtan University, Xiangtan 411105, ChinaCollege of Civil Engineering, Xiangtan University, Xiangtan 411105, ChinaFor 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.https://www.mdpi.com/2076-3417/13/9/5235fuzzy mathoversize goafbackfillhazardous waste treatmentmembership matrixevaluation factor
spellingShingle Daiqiang Deng
Guodong Cao
Yihua Liang
Jinkuan Fan
Runze Wang
Yunfan Ma
Analysis and Improvement of Oversize Goaf Backfill Engineering Based on Fuzzy Theory
Applied Sciences
fuzzy math
oversize goaf
backfill
hazardous waste treatment
membership matrix
evaluation factor
title Analysis and Improvement of Oversize Goaf Backfill Engineering Based on Fuzzy Theory
title_full Analysis and Improvement of Oversize Goaf Backfill Engineering Based on Fuzzy Theory
title_fullStr Analysis and Improvement of Oversize Goaf Backfill Engineering Based on Fuzzy Theory
title_full_unstemmed Analysis and Improvement of Oversize Goaf Backfill Engineering Based on Fuzzy Theory
title_short Analysis and Improvement of Oversize Goaf Backfill Engineering Based on Fuzzy Theory
title_sort analysis and improvement of oversize goaf backfill engineering based on fuzzy theory
topic fuzzy math
oversize goaf
backfill
hazardous waste treatment
membership matrix
evaluation factor
url https://www.mdpi.com/2076-3417/13/9/5235
work_keys_str_mv AT daiqiangdeng analysisandimprovementofoversizegoafbackfillengineeringbasedonfuzzytheory
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AT jinkuanfan analysisandimprovementofoversizegoafbackfillengineeringbasedonfuzzytheory
AT runzewang analysisandimprovementofoversizegoafbackfillengineeringbasedonfuzzytheory
AT yunfanma analysisandimprovementofoversizegoafbackfillengineeringbasedonfuzzytheory