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@inproceedings{Hosseini:2011,
author = {Hosseini, N and Oraee-Mirzamani, B and Oraee, K},
publisher = {ICGCM},
title = {Calculation of Periodic Roof Weighting Interval in Longwall Mining Using Finite Element Method},
url = {http://www.oraee.net/shenase/portals/0/movie/presentation/roof1.pdf},
year = {2011}
}

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TY  - CPAPER
AB  - The state of periodic loading and periodic roof weighting interval have an important role in geo-mechanical stability and hence continuity of operations in longwall method. In this paper, the mechanism of roof caving in longwall mining together with the effect of geometry and geo-mechanical properties of surrounding rock masses on the magnitude and timing of periodic loading are studied. For this purpose, a longwall mine is first modeled, using Phase2 software and then, by simulating the caving process in the roof, the periodic roof weighting intervals are calculated. Sensitivity analysis is then applied to determine the effect of changes in mechanical properties of rock mass, especially in the main roof and immediate roof as well as changes in the geometry of mine. Finally, comparison of the results between numerical modeling with other conventional methods, shows that the applied algorithm can effectively calculate the periodic roof weighting interval in longwall mining method. Also, due to the flexible nature of numerical modeling, reliable application of such approach can be envisaged in most mining conditions.
AU  - Hosseini,N
AU  - Oraee-Mirzamani,B
AU  - Oraee,K
PB  - ICGCM
PY  - 2011///
TI  - Calculation of Periodic Roof Weighting Interval in Longwall Mining Using Finite Element Method
UR  - http://www.oraee.net/shenase/portals/0/movie/presentation/roof1.pdf
ER  -

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