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Lateral Variation of the Vertical Stress in Underground Mine Stopes Filled with Granular Backfills

Rajeev, P. / Sumanasekera, P. R. / Sivakugan, N.

Abstract Marston’s theory and its modifications are widely used to predict the average vertical stress variation with depth within mine stopes. However, this does not model the lateral variation in vertical stress at a particular depth. In this study, a mathematical expression to simulate the vertical stress variation is developed using the experimental shear stress data of granular backfill. The developed model is validated against average vertical stress measured in the experiment. Therefore, the developed model has the advantage of determining both the average vertical stress and its distribution respectively, at a particular depth and a cross sectional area of the mine stope.

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Lateral Variation of the Vertical Stress in Underground Mine Stopes Filled with Granular Backfills

Rajeev, P. / Sumanasekera, P. R. / Sivakugan, N.

Abstract Marston’s theory and its modifications are widely used to predict the average vertical stress variation with depth within mine stopes. However, this does not model the lateral variation in vertical stress at a particular depth. In this study, a mathematical expression to simulate the vertical stress variation is developed using the experimental shear stress data of granular backfill. The developed model is validated against average vertical stress measured in the experiment. Therefore, the developed model has the advantage of determining both the average vertical stress and its distribution respectively, at a particular depth and a cross sectional area of the mine stope.

Lateral Variation of the Vertical Stress in Underground Mine Stopes Filled with Granular Backfills

Rajeev, P. / Sumanasekera, P. R. / Sivakugan, N.

Abstract Marston’s theory and its modifications are widely used to predict the average vertical stress variation with depth within mine stopes. However, this does not model the lateral variation in vertical stress at a particular depth. In this study, a mathematical expression to simulate the vertical stress variation is developed using the experimental shear stress data of granular backfill. The developed model is validated against average vertical stress measured in the experiment. Therefore, the developed model has the advantage of determining both the average vertical stress and its distribution respectively, at a particular depth and a cross sectional area of the mine stope.

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Title:

Lateral Variation of the Vertical Stress in Underground Mine Stopes Filled with Granular Backfills

Contributors:

Rajeev, P. (author) / Sumanasekera, P. R. (author) / Sivakugan, N. (author)

Published in:

Geotechnical and Geological Engineering ; 34

Publication date:

2015

ISSN:

DOI:

https://doi.org/10.1007/s10706-015-9959-4

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Arching , Lateral variation , Vertical stress , Granular backfill , Mining

Classification:

BKL: 38.58 Geomechanik / 57.00 Bergbau: Allgemeines / 56.20 Ingenieurgeologie, Bodenmechanik
Local classification TIB: 275/3750

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