THE ANALYSIS BY NUMERICAL SIMULATIONS OF SUPPORT WITH BOLTS AND NET IN THE SOFT ROCKS AND APPLICATION

The article based on the GANGGOU MINING geological condition of the down roadway,put forward the embody preject.Then by the numerical analyses software FLAC2D,deeply analyzed of the support effect by bolts and net to the whole structure of surrounding rocks,validate the support theory of bolts in vary period.Emphasize the net is very important function in the support system.It has some guidance meanings in coal mine use this technique in the aftertime.