Recent Insight into Longwall Strata Movements Deduced from Subsidence Analysis

Abstract

Using an inverse application of the traditional influence function technique, surface displacements are used to analyze some of the movements of the intermediate roof strata in a longwall panel. The primary hypothesis developed proposes the existence of an area of partial roof caving near the edge of a panel called the edge effect. A secondary hypothesis promotes the importance of the effect of gate entry closure on strata movements. The hypotheses are extended to provide an explanation of the subsidence interaction of adjacent longwall panels in what is termed a redisturbed effect.

Department(s)

Mining Engineering

International Standard Serial Number (ISSN)

0026-5187

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1987 Society for Mining, Metallurgy & Exploration Inc. (SME), All rights reserved.

Publication Date

01 Jan 1987

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