Application of the Terrestrial 3D Laser Scanning in Room and Pillar Trial at CSM Mine

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F18%3A00496339" target="_blank" >RIV/68145535:_____/18:00496339 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Application of the Terrestrial 3D Laser Scanning in Room and Pillar Trial at CSM Mine

Original language description

3D laser scanning is a unique technology used for the description and subsequent modeling of realnshape of spatially complex underground mining environment. Groundbreaking was its application innthe pilot deployment of the Room and Pillar method at the CSM mine, where this method was usednfor the first time within the Upper Silesian Coal Basin, also known to have one of the most difficultnmining and geomechanical conditions in the world. Very difficult mining conditions at depth over 800nm warranted searching for complex geotechnical tool or method that would capture all changesnwithout distortion. Despite some shortcomings, 3D laser scanning was selected, although there is stillnno suitable device for dusty and humid mining environment. During the pillar development phase,ncomprehensive geotechnical monitoring was undertaken including the frequent scanning of pillarnmovement using 3D laser scanning technology. Based on repeated time-separated measurements,nspatio-temporal analyses of deformation changes during ongoing mining were carried out. Thesenanalyses captured dynamic changes in coal rib, roof and floor movements of designated roadwaysnwhile developing the pillar panel. In addition, time dependent long term post-mining measurementsnquantified additional strata movements within the panel enabling assessment of the long term pillarnand mine roadway stability. The time-lapse scanning indicated variable pillar rib movement withnmaximum measured displacements of 60 cm. The scans indicated that in most cases, the bottom of thenseam displaced more than the top of the rib side due to low floor strength causing large floor heave ofnup to 100 cm. During the 3-year monitoring, more than 2 billion spatial points were captured that cannbe used for further analysis.

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

20301 - Mechanical engineering

Project

<a href="/en/project/LO1406" target="_blank" >LO1406: Institute of clean technologies for mining and utilization of raw materials for energy use -Sustainability program</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

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

Article name in the collection

10th Asian Rock Mechanics Symposium - The ISRM International Symposium for 2018

ISBN

978-981-11-9003-2

ISSN

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e-ISSN

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Number of pages

9

Pages from-to

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Publisher name

ISRM Singapur

Place of publication

Singapur

Event location

Singapur

Event date

Oct 29, 2018

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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