Deformation analysis in the surroundings of the roadway ahead of longwall mining, Staszic-Wujek Mine, Poland

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F23%3A00569192" target="_blank" >RIV/68145535:_____/23:00569192 - isvavai.cz</a>

Result on the web

<a href="https://ro.uow.edu.au/cgi/viewcontent.cgi?article=2521&context=coal" target="_blank" >https://ro.uow.edu.au/cgi/viewcontent.cgi?article=2521&context=coal</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Deformation analysis in the surroundings of the roadway ahead of longwall mining, Staszic-Wujek Mine, Poland

Original language description

Accurate knowledge of the stress-strain state in rock mass is absolutely critical to optimise support design. Therefore, the rock mass stresses are often measured for reasons of safety and efficiency in underground mining. Investigation of the rock mass stress is usually carried out by interpretation of the rock mass deformation processes. These can be monitored and measured. The compact conical-ended borehole overcoring (CCBO) probe was used to measure the pre-mining full stress tensor and afterwards three compact conical-ended borehole monitoring (CCBM) probes were installed to continuously monitor stress changes in rock mass ahead of the advancing longwall II/501/C mining seam 501 in the Staszic-Wujek coal mine in Poland. The purpose of the monitoring was to quantify changes in stress tensor during the mining process. At the monitoring site the extracted seam had an average thickness of 3.4 m at a depth of about 890 m and lies within the Polish part of the Upper Silesian Coal Basin. The maximum measured stress of 30 MPa was oriented close to horizontal and almost parallel to the monitored roadway. The deformation analysis of roadway was carried out using a pulse 3D laser scanner at the geotechnical station. Due to favourable orientation of the lateral stress, the deformation changes in the roadway surroundings the monitoring station were minimal.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of the 2023 Resource Operators Conference

ISBN

978-1-74128-353-2

ISSN

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e-ISSN

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Number of pages

16

Pages from-to

36-51

Publisher name

University of Wollongong

Place of publication

Wollongong

Event location

Wollongong

Event date

Feb 9, 2023

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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