On the quantitative determination of coal seam thickness by means of in-seam seismic surveys

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F15%3A00447887" target="_blank" >RIV/68145535:_____/15:00447887 - isvavai.cz</a>

Result on the web

<a href="http://www.nrcresearchpress.com/doi/full/10.1139/cgj-2014-0466#.VgqE1Zc70mt" target="_blank" >http://www.nrcresearchpress.com/doi/full/10.1139/cgj-2014-0466#.VgqE1Zc70mt</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1139/cgj-2014-0466" target="_blank" >10.1139/cgj-2014-0466</a>

Result language

angličtina

Original language name

On the quantitative determination of coal seam thickness by means of in-seam seismic surveys

Original language description

By means of in-seam seismic (ISS) surveys carried out at Karvina coal mine of OKD, Czech Republic, in two neighbouring panels it is shown how the distribution of coal seam thickness can be investigated if the coal seam consists of almost pure coal. The coal seam under investigation was considerably affected by erosion, which resulted in thickness changes amounting from 30 cm up to 4.40 m. First, by applying ISS-tomographic inversion to the group travel times for a constant frequency value, the distribution of the related group velocity was determined, which showed the extension of the erosions within the survey areas. By correlating the group velocity distribution with known values of the coal seam thickness along a gate, a relation in terms of a polynomial approxi- mation between these quantities could be derived. This relation is specific for a chosen frequency value and resolves in general only some of the thickness range. For the application presented in this paper, a value of 200

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DH - Mining industry including coal mining and processing

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Name of the periodical

Canadian Geotechnical Journal

ISSN

0008-3674

e-ISSN

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Volume of the periodical

52

Issue of the periodical within the volume

10

Country of publishing house

CA - CANADA

Number of pages

9

Pages from-to

1496-1504

UT code for WoS article

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EID of the result in the Scopus database

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