Fracturing of an Euler-Bernoulli beam in coal mine pillar extraction

C.P. Please; D.P. Mason; C.M. Khalique; J.M.T. Ngnotchouye; A.J. Hutchinson; J.N. van der Merwe; H. Yilmaz

doi:10.1016/j.ijrmms.2013.08.001

Fracturing of an Euler-Bernoulli beam in coal mine pillar extraction

C.P. Please, D.P. Mason, C.M. Khalique, J.M.T. Ngnotchouye, A.J. Hutchinson, J.N. van der Merwe, H. Yilmaz

Applied Mathematics

Research output: Contribution to journal › Article › peer-review

Abstract

The paper models the first stage of the process of pillar extraction in a coal mine. The problem of understanding how a coal mine roof collapses after secondary cutting of the supporting pillars to create small supporting snooks is considered. The fracture of the roof is considered when a set of snooks have failed and the roof must support itself between two pillars. Models that account for the relative importance of the overburden weight on the roof and the compressive stresses in the roof are examined using a simple strut and beam theory.

Original language	English
Pages (from-to)	132-138
Number of pages	7
Journal	International Journal of Rock Mechanics and Mining Sciences
Volume	64
Early online date	20 Sept 2013
DOIs	https://doi.org/10.1016/j.ijrmms.2013.08.001
Publication status	Published - Dec 2013

Keywords

coal mine
pillar extraction
snook
bending moment
Euler–Bernoulli beam
Euler strut

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10.1016/j.ijrmms.2013.08.001

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title = "Fracturing of an Euler-Bernoulli beam in coal mine pillar extraction",

abstract = "The paper models the first stage of the process of pillar extraction in a coal mine. The problem of understanding how a coal mine roof collapses after secondary cutting of the supporting pillars to create small supporting snooks is considered. The fracture of the roof is considered when a set of snooks have failed and the roof must support itself between two pillars. Models that account for the relative importance of the overburden weight on the roof and the compressive stresses in the roof are examined using a simple strut and beam theory.",

keywords = "coal mine, pillar extraction, snook, bending moment, Euler–Bernoulli beam, Euler strut",

author = "C.P. Please and D.P. Mason and C.M. Khalique and J.M.T. Ngnotchouye and A.J. Hutchinson and {van der Merwe}, J.N. and H. Yilmaz",

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AU - Please, C.P.

AU - Mason, D.P.

AU - Khalique, C.M.

AU - Ngnotchouye, J.M.T.

AU - Hutchinson, A.J.

AU - van der Merwe, J.N.

AU - Yilmaz, H.

PY - 2013/12

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N2 - The paper models the first stage of the process of pillar extraction in a coal mine. The problem of understanding how a coal mine roof collapses after secondary cutting of the supporting pillars to create small supporting snooks is considered. The fracture of the roof is considered when a set of snooks have failed and the roof must support itself between two pillars. Models that account for the relative importance of the overburden weight on the roof and the compressive stresses in the roof are examined using a simple strut and beam theory.

AB - The paper models the first stage of the process of pillar extraction in a coal mine. The problem of understanding how a coal mine roof collapses after secondary cutting of the supporting pillars to create small supporting snooks is considered. The fracture of the roof is considered when a set of snooks have failed and the roof must support itself between two pillars. Models that account for the relative importance of the overburden weight on the roof and the compressive stresses in the roof are examined using a simple strut and beam theory.

KW - coal mine

KW - pillar extraction

KW - snook

KW - bending moment

KW - Euler–Bernoulli beam

KW - Euler strut

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VL - 64

SP - 132

EP - 138

JO - International Journal of Rock Mechanics and Mining Sciences

JF - International Journal of Rock Mechanics and Mining Sciences

ER -

Fracturing of an Euler-Bernoulli beam in coal mine pillar extraction

Abstract

Keywords

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