provided by the National Basic Research Program of China (No. 2005CB221502);the Major Program of National Natural Science Foundation of China (No.50490273);the Postdoctoral Subject Foundation of the State Key Laboratory of Geomechanics & Deep Underground Engineering(No. PD1005);the Research Foundation of Heze University (No.XY10BS04);the TransCentury Training Program Foundation forthe Talents by the State Education Commission (No. NCET-08-0837);the National Natural Science Foundation of China (No.50834005)
Coal pillar deformation is typically nonlinear and time-dependent. The accurate prediction of this defor- mation has a vital importance for the successful implementation of mining techniques. These methods have proven...