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An evaluation of roof support plans at two coal mines in Illinois using numerical models
Design of stable intersections and their reinforcement requires additional research and
development, since over 70–80% of roof falls in US coal mines typically occur at …
development, since over 70–80% of roof falls in US coal mines typically occur at …
An analysis of the possible fault displacements associated with a retreating longwall face in Illinois
Longwall mining is growing rapidly in Illinois. A coal company was faced with crossing a 3-m
normal fault in the development entries and the longwall face while mining a 375-m wide …
normal fault in the development entries and the longwall face while mining a 375-m wide …
[کتاب][B] An improved rock mass behavior numerical model and its applications to longwall coal mining
B Abbasi - 2016 - search.proquest.com
The rock mass constitutive models should include elastic moduli, strength and stiffness of
intact rock as well as those of joints and geometric properties of joints. The post-failure …
intact rock as well as those of joints and geometric properties of joints. The post-failure …
[PDF][PDF] Analyses and Field Performance of Alternate Mining Geometries for Set-up Rooms and Development Entries in Longwall Mining
YP Chugh, H Gurley, B Abbasi - researchgate.net
This paper discusses a numerical modeling and field study that focuses on: 1) Identifying
mechanisms of instability in the set-up rooms (SR) and T-junctions, and 2) Implementing …
mechanisms of instability in the set-up rooms (SR) and T-junctions, and 2) Implementing …