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The interplay between moisture sensitive roof rocks and roof falls in an Illinois underground coal mine
Abstract This study focuses on the performance analysis of mine roof rock due to moisture variation using a case study, which experienced roof falls. The roof layer types, thicknesses, and properties were determined using extensive lab and field data. A novel numerical model is developed using site information and observed field performance to incorporate: (1) the interaction between roof rock unit beddings, (2) the interaction of roof bolts and rock units, and (3) the effect of moisture increase on roof deformation and failure. Using the proposed methodology, the mine roof layers’ allowable maximum moisture contents prior to failure can be estimated.
The interplay between moisture sensitive roof rocks and roof falls in an Illinois underground coal mine
Abstract This study focuses on the performance analysis of mine roof rock due to moisture variation using a case study, which experienced roof falls. The roof layer types, thicknesses, and properties were determined using extensive lab and field data. A novel numerical model is developed using site information and observed field performance to incorporate: (1) the interaction between roof rock unit beddings, (2) the interaction of roof bolts and rock units, and (3) the effect of moisture increase on roof deformation and failure. Using the proposed methodology, the mine roof layers’ allowable maximum moisture contents prior to failure can be estimated.
The interplay between moisture sensitive roof rocks and roof falls in an Illinois underground coal mine
Osouli, Abdolreza (author) / Moradi Bajestani, Behrooz (author)
Computers and Geotechnics ; 80 ; 152-166
2016-07-11
15 pages
Article (Journal)
Electronic Resource
English
British Library Online Contents | 2016
|British Library Online Contents | 2016
|British Library Online Contents | 2016
|British Library Online Contents | 2016
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