EW-UCA Mode and Application to Analyze Surrounding Rock Stability of Seam Gateway
LI Ru-jie
YAN Xin-jian
WU Hao
Abstract：An accurate judgement on the surrounding rock stability of the mine gateway would be the base to conduct the support design and safety construction of the mine gateway. An optimization was made on the unascertained measure theory.In combination with the surrounding rock control theory and related study achievements of the gateway ,the buried depth and span of six main influence factors of the gateway were selected as the judging indexes to analyze the surrounding stability of the gate-way.Based on 20 groups of the site measured data as the training samples ,the EW-UCA model to ana-lyze the surrounding rock stability of the gateway was established.In order to test the reliability of the model ,the model was applied to the analysis study on the surrounding rock stability of four seam gate-ways in Pansi East Mine. The results showed that judging results of the model and the actual condition were fully the same ,which could show that the model could have a high accuracy and good practicabili-ty.
Keywords：surrounding rock stabilityclassificationunascertained measure theoryseam gatewaym o del
Publication Date：2015-07-02
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 52-54,51 )