Superposition model for analyzing the dynamic ground subsidence in mining area of thick loose layer

查看全文 作　　者：Defeng [1]Hou;Dehai [2]Li;Guosheng [2]Xu;Yanbin [2]Zhang

机构地区：[1]College of Resources & Safety Engineering, China University of Mining & Technology;[2]Institute of Energy Science and Engineering, Henan Polytechnic Universit

出　　处：《International Journal of Mining Science and Technology》索引2018年第28卷第4期,共6页

基　　金：provided by the National Natural Science Foundation of China Youth Found of China (No.41102169);the doctoral foundation of Henan Polytechnic University of China (No. B2014-056) 摘　　要：The dynamic ground subsidence due to underground mining is a complicated time-dependent and ratedependent process. Based on the theory of rock rheology and probability integral method, this study developed the superposition model for the prediction and analysis of the ground dynamic subsidence in mining area of thick loose layer. The model consists of two parts(the prediction of overlying bedrock and the prediction of thick loose layer). The overlying bedrock is regarded as visco-elastic beam, of which the dynamic subsidence is predicted by the Kelvin visco-elastic rheological model. The thick loose layer is regarded as random medium and the ground dynamic subsidence is predicted by the probability integral model. At last, the two prediction models are vertically stacked in the same coordinate system, and the bedrock dynamic subsidence is regarded as a variable mining thickness input into the prediction model of ground dynamic subsidence. The prediction results obtained were compared with actual movement and deformation data from Zhao I and Zhao II mine, central China. The agreement of the prediction results with the field measurements show that the superposition model(SM) is more satisfactory and the formulae obtained are more effective than the classical single probability integral model(SPIM), and thus can be effectively used for predicting the ground dynamic subsidence in mining area of thick loose layer. 关键词：动态沉淀重叠模型采矿区地面域分析松积分模型时间依赖

相关文献

参考文献（25）
引证文献（3）
耦合文献（279）

参考文献(25)

引证文献(3)

耦合文献(279)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Superposition model for analyzing the dynamic ground subsidence in mining area of thick loose layer

参考文献(25)

引证文献(3)

耦合文献(279)

用户提示