Numerical Analysis for the Caving Characteristics of Rock Mass with Inclined Joints in Caving Mining

In caving mining, the successful initiation and propagation of caving require one low-dip joint set. However, not every mine has a low-dip joint set. The Hemushan Iron Mine in China was taken as the engineering background, and the caving characteristics of rock mass with inclined joints were analyze...

Full description

Saved in:
Bibliographic Details
Main Authors: Jinbo Sui, Fengyu Ren, Jianli Cao, Huan Liu
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2021/9917744
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832561604215963648
author Jinbo Sui
Fengyu Ren
Jianli Cao
Huan Liu
author_facet Jinbo Sui
Fengyu Ren
Jianli Cao
Huan Liu
author_sort Jinbo Sui
collection DOAJ
description In caving mining, the successful initiation and propagation of caving require one low-dip joint set. However, not every mine has a low-dip joint set. The Hemushan Iron Mine in China was taken as the engineering background, and the caving characteristics of rock mass with inclined joints were analyzed based on the synthetic rock mass (SRM) model. First, the inclined joints were investigated in the Hemushan Iron Mine. Second, model parameters were determined based on the geological conditions of the mine, and seven models were established. Third, the caving process was simulated, and caving characteristics were monitored. For rock mass with inclined joints after undercutting, the research showed that the crack zone was significant, and the crack zone existed not only around the undercut area but also further away in the model. The stress concentration areas dispersed in the model except for the top of the undercut area. The caving line was not a standard arch, and the highest point of the caving line was biased towards the direction of the undercut. Under the same undercut width, with the decrease of joint length in the joint system, the number of cracks decreased, the degree of stress concentration became weaker, and the height of the caving line decreased.
format Article
id doaj-art-f1eb647db4f24f1fa23b91dfa27241db
institution Kabale University
issn 1687-8086
1687-8094
language English
publishDate 2021-01-01
publisher Wiley
record_format Article
series Advances in Civil Engineering
spelling doaj-art-f1eb647db4f24f1fa23b91dfa27241db2025-02-03T01:24:46ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/99177449917744Numerical Analysis for the Caving Characteristics of Rock Mass with Inclined Joints in Caving MiningJinbo Sui0Fengyu Ren1Jianli Cao2Huan Liu3School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaIn caving mining, the successful initiation and propagation of caving require one low-dip joint set. However, not every mine has a low-dip joint set. The Hemushan Iron Mine in China was taken as the engineering background, and the caving characteristics of rock mass with inclined joints were analyzed based on the synthetic rock mass (SRM) model. First, the inclined joints were investigated in the Hemushan Iron Mine. Second, model parameters were determined based on the geological conditions of the mine, and seven models were established. Third, the caving process was simulated, and caving characteristics were monitored. For rock mass with inclined joints after undercutting, the research showed that the crack zone was significant, and the crack zone existed not only around the undercut area but also further away in the model. The stress concentration areas dispersed in the model except for the top of the undercut area. The caving line was not a standard arch, and the highest point of the caving line was biased towards the direction of the undercut. Under the same undercut width, with the decrease of joint length in the joint system, the number of cracks decreased, the degree of stress concentration became weaker, and the height of the caving line decreased.http://dx.doi.org/10.1155/2021/9917744
spellingShingle Jinbo Sui
Fengyu Ren
Jianli Cao
Huan Liu
Numerical Analysis for the Caving Characteristics of Rock Mass with Inclined Joints in Caving Mining
Advances in Civil Engineering
title Numerical Analysis for the Caving Characteristics of Rock Mass with Inclined Joints in Caving Mining
title_full Numerical Analysis for the Caving Characteristics of Rock Mass with Inclined Joints in Caving Mining
title_fullStr Numerical Analysis for the Caving Characteristics of Rock Mass with Inclined Joints in Caving Mining
title_full_unstemmed Numerical Analysis for the Caving Characteristics of Rock Mass with Inclined Joints in Caving Mining
title_short Numerical Analysis for the Caving Characteristics of Rock Mass with Inclined Joints in Caving Mining
title_sort numerical analysis for the caving characteristics of rock mass with inclined joints in caving mining
url http://dx.doi.org/10.1155/2021/9917744
work_keys_str_mv AT jinbosui numericalanalysisforthecavingcharacteristicsofrockmasswithinclinedjointsincavingmining
AT fengyuren numericalanalysisforthecavingcharacteristicsofrockmasswithinclinedjointsincavingmining
AT jianlicao numericalanalysisforthecavingcharacteristicsofrockmasswithinclinedjointsincavingmining
AT huanliu numericalanalysisforthecavingcharacteristicsofrockmasswithinclinedjointsincavingmining