Adjusting the Influence Function Method for Subsidence Prediction

Theextraction of ore and minerals by underground mining may induce groundsubsidence phenomena. These phenomena produce several types of ground movement likehorizontal and vertical displacements, ground curvature and horizontal groundstrain at the surface, and associated building damage in urban regi...

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Bibliographic Details
Published in:Key engineering materials 2013-06, Vol.553, p.59-66
Main Authors: Deck, Olivier, Al Heib, Marwan, Rouleau, Alain, Verdel, Thierry, Saeidi, Ali
Format: Article
Language:English
Subjects:
Computer programs
Construction
Ground movements
Horizontal
Influence functions
Mathematical analysis
Methodology
Mines
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Summary:Theextraction of ore and minerals by underground mining may induce groundsubsidence phenomena. These phenomena produce several types of ground movement likehorizontal and vertical displacements, ground curvature and horizontal groundstrain at the surface, and associated building damage in urban regions. Theinfluence function is a well-known and efficient method for the prediction ofthese movements, but its application is restricted to mining configurationswith the same influence angle around the mine. However, this angle may displaydifferent values when the mine is not horizontal or when other subsidenceevents already occurred near the considered mine.In this paper a methodology and analgorithm are developed, based on the traditional influence function method inorder to take into account different influence angles. This methodology isimplemented in the Mathematicasoftware and a case study is presented with data from the Lorraine iron minefield in France. Ground movements calculated with the developed methodologyshow a fair concordance with observed data.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.553.59