@inproceedings{2c01759eca184b65adae52bb4492c593,
title = "3-D discontinuum numerical modeling of rock mass stability investigations due to ore extraction and backfilling, and subsidence estimation for an underground mine",
abstract = "Subsidence prediction due to ore extraction and backfilling during open stoping operations for an underground iron mine in China is reported in this paper. Geologic complexities including faults and interfaces between different lithologies, and the stoping and backfilling sequence adopted from the mine plans are incorporated in building a 3-D discontinuum numerical model. The stoping was simulated in two vertically stacked horizontal layers (Fig. 6), with a total of 16 stopes. Large displacements of up to 50 cm were predicted by the model along the roof of the stopes, and a maximum surface subsidence of 22.5 cm was predicted by the model . Backfilling was found to control subsequent deformation and subsidence. The extraction of the upper orebody led to relatively higher deformations in extracting the lower orebody. Finally, the predicted subsidences at all locations along a subsidence profile on the surface are shown.",
keywords = "3DEC, Backfilling, Discrete element method, Ore extraction, Surface subsidence",
author = "Kulatilake, {Pinnaduwa H.S.W.} and Srisharan Shreedharan and Gang Huang and Sijing Cai and Hongqing Song",
note = "Publisher Copyright: Copyright {\textcopyright} (2016) by Society for Mining, Metallurgy and Exploration (SME). All rights reserved.; 35th International Conference on Ground Control in Mining 2016 ; Conference date: 26-07-2016 Through 28-07-2016",
year = "2016",
language = "English (US)",
series = "35th International Conference on Ground Control in Mining 2016",
publisher = "Society for Mining, Metallurgy and Exploration",
pages = "222--230",
editor = "Barczak, {Thomas M.} and Peng, {Syd S.} and Tadolini, {Stephen C.} and Donna Schmidt",
booktitle = "35th International Conference on Ground Control in Mining 2016",
}