Imperial College London
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DrHarshitAgrawal

Faculty of Engineering, Department of Earth Science & Engineering

Visiting Researcher
 
 
 
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Contact

 

h.agrawal17 Website

 
 
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Location

 

Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Agrawal:2020,
author = {Agrawal, H and Cao, W and Durucan, S and Korre, A},
title = {Development of a probabilistic risk assessment methodology to evaluate the effect of lithological heterogeneity on rock bursts and gas outbursts in longwall coal mining},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - A coupled geomechanical and gas flow model was developed to analyse rock burst and gas outburst risk associated with retreating longwall coal mining in heterogeneous coal seams. Mechanical, elastic and reservoir properties of a heterogeneous coal seam were attributed consistently for several realisations to analyse their influence on rock burst and gas outburst potential. Several scenarios were developed by varying the degree of lithological heterogeneity caused by xylite within a mostly detritic lignite coal seam in the modelled heterogeneous zone. Model results have shown that, as the longwall face approaches the heterogeneous zone, the changes in vertical stress along the face, as well as ahead of it, are affected strongly by the degree of heterogeneity. The potential for a rapid increase in gas emission rate and outburst risk, which may occur as the face cuts through the heterogeneous zone, was also found to depend largely on the degree of heterogeneity implemented.
AU  - Agrawal,H
AU  - Cao,W
AU  - Durucan,S
AU  - Korre,A
PY  - 2020///
TI  - Development of a probabilistic risk assessment methodology to evaluate the effect of lithological heterogeneity on rock bursts and gas outbursts in longwall coal mining
ER  -
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