Stress changes and seismicity monitoring of hard coal longwall mining in high rockburst risk areas

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F18%3A00491714" target="_blank" >RIV/68145535:_____/18:00491714 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0886779817308763" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0886779817308763</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tust.2018.07.019" target="_blank" >10.1016/j.tust.2018.07.019</a>

Result language

angličtina

Original language name

Stress changes and seismicity monitoring of hard coal longwall mining in high rockburst risk areas

Original language description

Rockburst represents a very dangerous phenomenon in deep underground mining as well as in underground constructions in unfavourable conditions (great depth, high horizontal stress, proximity of important tectonic structures, etc.). The rockburst problem relates to the natural and mining conditions of the rock mass. It is very difficult to decide which of the factors prevails, but we generally assume that it is the occurrence of competent rock layers in the rock mass. The destress blasting method is a very important rockburst control technique aims to competent rocks. The case study describes the control of rockburst risk by destress blasting in an example of a longwall of the Upper Silesian Coal Basin. Monitoring of stress changes and induced seismicity was implemented in the selected longwall here and a description of these techniques is given. The paper describes the natural, geomechanical, and mining conditions of the investigated locality in detail. Stress changes ahead of the advancing longwall face as well as registered induced seismicity depending on the longwall advance are analysed, including the application of the destress blasting technique. Stress release efficiency, as one goal of the destress blasting technique, is analysed according to the registered seismicity using the authors’ own methodology: seismic effect calculation.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

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

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

Name of the periodical

Tunnelling and Underground Space Technology

ISSN

0886-7798

e-ISSN

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Volume of the periodical

81

Issue of the periodical within the volume

81

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

237-251

UT code for WoS article

000446949500021

EID of the result in the Scopus database

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