Effect of Strong Mining on the Fracture Evolution Law of Trick Rise in the Mining Field and Its Control Technology

This study investigates the law of stress field and fracture field of the surrounding rock at the trick rise of the mining area affected by strong mining. It is found that as the working face continues to approach, large-scale cracks occur in the surrounding rock on the track rise. In particular, wh...

Full description

Saved in:
Bibliographic Details
Main Authors: Zhaolin Li, Lianguo Wang, Ke Ding
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2022/3953650
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832565697365934080
author Zhaolin Li
Lianguo Wang
Ke Ding
author_facet Zhaolin Li
Lianguo Wang
Ke Ding
author_sort Zhaolin Li
collection DOAJ
description This study investigates the law of stress field and fracture field of the surrounding rock at the trick rise of the mining area affected by strong mining. It is found that as the working face continues to approach, large-scale cracks occur in the surrounding rock on the track rise. In particular, when the working face crosses the track rise, the equivalent stress τoct concentration area expands, gradually intersecting with the surrounding rock concentration area of the roadway. It indicates that the working face advancement caused a dramatic change in the stress field of the roadway envelope, which will have an immediate adverse effect on the track rise. With comprehensive support costs, economic efficiency, and other factors, the working face will no longer cross the track rise, and the stopping line is roughly controlled at -20 m so that the track rise can serve other working faces for a long time. The reinforcement support scheme of “anchor mesh spray + grouting anchor” is proposed for the key areas such as arch shoulder. Through the analysis of the field monitoring of the roadway surface displacement, the deformation of the roadway surrounding rock showed a change trend of increasing first and then stabilizing with time, which indicates that the support effect was good and greatly improved the stability and safety of the roadway.
format Article
id doaj-art-1443618085c34ad1a4dc1472e0defa14
institution Kabale University
issn 1468-8123
language English
publishDate 2022-01-01
publisher Wiley
record_format Article
series Geofluids
spelling doaj-art-1443618085c34ad1a4dc1472e0defa142025-02-03T01:06:46ZengWileyGeofluids1468-81232022-01-01202210.1155/2022/3953650Effect of Strong Mining on the Fracture Evolution Law of Trick Rise in the Mining Field and Its Control TechnologyZhaolin Li0Lianguo Wang1Ke Ding2School of MinesState Key Laboratory for Geomechanics and Deep Underground EngineeringState Key Laboratory for Geomechanics and Deep Underground EngineeringThis study investigates the law of stress field and fracture field of the surrounding rock at the trick rise of the mining area affected by strong mining. It is found that as the working face continues to approach, large-scale cracks occur in the surrounding rock on the track rise. In particular, when the working face crosses the track rise, the equivalent stress τoct concentration area expands, gradually intersecting with the surrounding rock concentration area of the roadway. It indicates that the working face advancement caused a dramatic change in the stress field of the roadway envelope, which will have an immediate adverse effect on the track rise. With comprehensive support costs, economic efficiency, and other factors, the working face will no longer cross the track rise, and the stopping line is roughly controlled at -20 m so that the track rise can serve other working faces for a long time. The reinforcement support scheme of “anchor mesh spray + grouting anchor” is proposed for the key areas such as arch shoulder. Through the analysis of the field monitoring of the roadway surface displacement, the deformation of the roadway surrounding rock showed a change trend of increasing first and then stabilizing with time, which indicates that the support effect was good and greatly improved the stability and safety of the roadway.http://dx.doi.org/10.1155/2022/3953650
spellingShingle Zhaolin Li
Lianguo Wang
Ke Ding
Effect of Strong Mining on the Fracture Evolution Law of Trick Rise in the Mining Field and Its Control Technology
Geofluids
title Effect of Strong Mining on the Fracture Evolution Law of Trick Rise in the Mining Field and Its Control Technology
title_full Effect of Strong Mining on the Fracture Evolution Law of Trick Rise in the Mining Field and Its Control Technology
title_fullStr Effect of Strong Mining on the Fracture Evolution Law of Trick Rise in the Mining Field and Its Control Technology
title_full_unstemmed Effect of Strong Mining on the Fracture Evolution Law of Trick Rise in the Mining Field and Its Control Technology
title_short Effect of Strong Mining on the Fracture Evolution Law of Trick Rise in the Mining Field and Its Control Technology
title_sort effect of strong mining on the fracture evolution law of trick rise in the mining field and its control technology
url http://dx.doi.org/10.1155/2022/3953650
work_keys_str_mv AT zhaolinli effectofstrongminingonthefractureevolutionlawoftrickriseintheminingfieldanditscontroltechnology
AT lianguowang effectofstrongminingonthefractureevolutionlawoftrickriseintheminingfieldanditscontroltechnology
AT keding effectofstrongminingonthefractureevolutionlawoftrickriseintheminingfieldanditscontroltechnology