Study on Gradual Deformation and Prediction Model of the Mined Overburden

Abstract:

Based on the overburden three caving feature, the deformation of mining rock process was devided and the criterion of gradual transformation of each stages deformation were given. Then , combined the thin-plate theory, the differential models were derived for rock deformation in level and similar to level bured condition. The boundary condition of each models and exchange condition between different models were put forward and the gradual mechanics model was set up.The subsidence model before roof collapse was solved by Navier double trigonometric series and the deflection surface expression of rock deformation was put forword. At last, the reliability and practicality of the models was verified by engineering examples.

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 699-704
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.699
• Online since: May 2012
• Authors: Xiao Gang Xia, Yun Feng Yang
• Keywords: Gradual Deformation, Mining, Movement, Overburden, Prediction Model

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