Study on Failure Characteristics and Reasonable Mining Parameters of Upward Mining of Integrated Coal Mine

In order to avoid the problem of repeated repair of roadways in the upper mining area of upward mining in the integrated mine, taking the roadways in the 302 mining area of Shancheng Coal Mine as the research object, the failure characteristics of overlying strata and the evolution characteristics o...

Full description

Saved in:
Bibliographic Details
Main Authors: Fengfeng Wu, Bo Lv, Jian Zhang, Zhiqiang Gao, Shibao Liu, Qingcong Zhou
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2022/4647558
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832554808128569344
author Fengfeng Wu
Bo Lv
Jian Zhang
Zhiqiang Gao
Shibao Liu
Qingcong Zhou
author_facet Fengfeng Wu
Bo Lv
Jian Zhang
Zhiqiang Gao
Shibao Liu
Qingcong Zhou
author_sort Fengfeng Wu
collection DOAJ
description In order to avoid the problem of repeated repair of roadways in the upper mining area of upward mining in the integrated mine, taking the roadways in the 302 mining area of Shancheng Coal Mine as the research object, the failure characteristics of overlying strata and the evolution characteristics of roadway plastic zone in the mining process of underlying coal seam were studied by combining theoretical analysis, numerical simulation, and engineering measurement. The influence law of underlying coal seam mining on the integrity of 3# coal seam and the stability of roadways in the 302 mining area was revealed, and the repair opportunity of roadways in the upper coal seam and the reasonable position of open-off cut in the lower coal seam working face were determined. The research shows that due to the influence of the mining of the working face in the underlying coal seam, the plastic failure of the overlying strata is serious during the upward mining of Shancheng Coal Mine, but there is no step dislocation, but the overall subsidence is presented. The plastic zone range of roadway in 302 mining area first increases and then tends to be stable with the mining of 97308 working face in underlying coal seam, and the roadway repair should be carried out after 280 m advance of 97308 working face. Based on the coordination between the influence of the cutting position of the underlying coal seam on the variation characteristics of the plastic zone of the upper roadway and the saving of coal resources, it is determined that the cutting position of the underlying 153308 working face is advanced to 340 m. The field engineering application shows that the deformation of roadway surrounding rock meets the production requirements by implementing the above mining parameters, and the rerepair of roadway surrounding rock deformation in 302 mining area of 3# coal seam is avoided.
format Article
id doaj-art-89c81d6ff8cb4c30bf06811c828a8cc3
institution Kabale University
issn 1468-8123
language English
publishDate 2022-01-01
publisher Wiley
record_format Article
series Geofluids
spelling doaj-art-89c81d6ff8cb4c30bf06811c828a8cc32025-02-03T05:50:30ZengWileyGeofluids1468-81232022-01-01202210.1155/2022/4647558Study on Failure Characteristics and Reasonable Mining Parameters of Upward Mining of Integrated Coal MineFengfeng Wu0Bo Lv1Jian Zhang2Zhiqiang Gao3Shibao Liu4Qingcong Zhou5State Key Laboratory of Coal Resources and Safe MiningState Key Laboratory of Coal Resources and Safe MiningState Key Laboratory of Coal Resources and Safe MiningState Key Laboratory of Coal Resources and Safe MiningState Key Laboratory of Coal Resources and Safe MiningState Key Laboratory of Coal Resources and Safe MiningIn order to avoid the problem of repeated repair of roadways in the upper mining area of upward mining in the integrated mine, taking the roadways in the 302 mining area of Shancheng Coal Mine as the research object, the failure characteristics of overlying strata and the evolution characteristics of roadway plastic zone in the mining process of underlying coal seam were studied by combining theoretical analysis, numerical simulation, and engineering measurement. The influence law of underlying coal seam mining on the integrity of 3# coal seam and the stability of roadways in the 302 mining area was revealed, and the repair opportunity of roadways in the upper coal seam and the reasonable position of open-off cut in the lower coal seam working face were determined. The research shows that due to the influence of the mining of the working face in the underlying coal seam, the plastic failure of the overlying strata is serious during the upward mining of Shancheng Coal Mine, but there is no step dislocation, but the overall subsidence is presented. The plastic zone range of roadway in 302 mining area first increases and then tends to be stable with the mining of 97308 working face in underlying coal seam, and the roadway repair should be carried out after 280 m advance of 97308 working face. Based on the coordination between the influence of the cutting position of the underlying coal seam on the variation characteristics of the plastic zone of the upper roadway and the saving of coal resources, it is determined that the cutting position of the underlying 153308 working face is advanced to 340 m. The field engineering application shows that the deformation of roadway surrounding rock meets the production requirements by implementing the above mining parameters, and the rerepair of roadway surrounding rock deformation in 302 mining area of 3# coal seam is avoided.http://dx.doi.org/10.1155/2022/4647558
spellingShingle Fengfeng Wu
Bo Lv
Jian Zhang
Zhiqiang Gao
Shibao Liu
Qingcong Zhou
Study on Failure Characteristics and Reasonable Mining Parameters of Upward Mining of Integrated Coal Mine
Geofluids
title Study on Failure Characteristics and Reasonable Mining Parameters of Upward Mining of Integrated Coal Mine
title_full Study on Failure Characteristics and Reasonable Mining Parameters of Upward Mining of Integrated Coal Mine
title_fullStr Study on Failure Characteristics and Reasonable Mining Parameters of Upward Mining of Integrated Coal Mine
title_full_unstemmed Study on Failure Characteristics and Reasonable Mining Parameters of Upward Mining of Integrated Coal Mine
title_short Study on Failure Characteristics and Reasonable Mining Parameters of Upward Mining of Integrated Coal Mine
title_sort study on failure characteristics and reasonable mining parameters of upward mining of integrated coal mine
url http://dx.doi.org/10.1155/2022/4647558
work_keys_str_mv AT fengfengwu studyonfailurecharacteristicsandreasonableminingparametersofupwardminingofintegratedcoalmine
AT bolv studyonfailurecharacteristicsandreasonableminingparametersofupwardminingofintegratedcoalmine
AT jianzhang studyonfailurecharacteristicsandreasonableminingparametersofupwardminingofintegratedcoalmine
AT zhiqianggao studyonfailurecharacteristicsandreasonableminingparametersofupwardminingofintegratedcoalmine
AT shibaoliu studyonfailurecharacteristicsandreasonableminingparametersofupwardminingofintegratedcoalmine
AT qingcongzhou studyonfailurecharacteristicsandreasonableminingparametersofupwardminingofintegratedcoalmine