Skip to main content
Conference Proceedings

The Fourth Australasian Ground Control in Mining Conference (AusRock)

Conference Proceedings

The Fourth Australasian Ground Control in Mining Conference (AusRock)

PDF Add to cart

Modelling multi-seam interactions for longwall mining

This paper addresses a gap in longwall multi-seam interactions and their predictions, providing a case study for future multi-seam operations for both anticipated conditions and a method for understanding the changes in stress regime. Multiple panels were modelled with the results analysed and compared to panel experiences to validate the parameters and properties. The software chosen (LaModel) is a numerical modelling package designed to model stresses and displacements on thin deposits. It utilises a displacement-discontinuity variation of the boundary-element method and has been used extensively throughout both the United States and Australia in multi-seam operations. Analysis of the results demonstrates a clear correlation with the above workings and regions of significant strata instability. This provides the opportunity going forward to analyse new models and incorporate into mine planning and geotechnical designs. Continuous site-based assessment should be undertaken at multi-seam operations to better understand and quantify likely vertical stress levels within the workings. With a detailed analysis of models prior to extraction and a review of models post extraction. Further research is required as LaModel is limited to vertical stress and it is likely that interactions impact both the horizontal and shear stress regime. 3-dimensional modelling could further assist in this understanding, combined with a thorough stress monitoring regime. CITATION:Lines, A, 2018. Modelling multi-seam interactions for longwall mining, in
Proceedings The Fourth Australasian Ground Control in Mining Conference (AusRock), pp 185-195 (The Australasian Institute of Mining and Metallurgy: Melbourne).
Return to parent product
  • Modelling multi-seam interactions for longwall mining
    PDF
    This product is exclusive to Digital library subscription
  • Modelling multi-seam interactions for longwall mining
    PDF
    Normal price $22.00
    Member price from $0.00
    Add to cart

    Fees above are GST inclusive

PD Hours
Approved activity
  • Published: 2018
  • PDF Size: 2.458 Mb.
  • Unique ID: P201805018

Our site uses cookies

We use these to improve your browser experience. By continuing to use the website you agree to the use of cookies.