STABILITY ANALYSES OF DRIFT IN DEEP ROCK MASS BY FINITE-ELEMENT

According to the characteristic of the deep rock massdeformation,the elastic-plastic constitutive model is constructed.The stability of drift is analyzed with the finite-element method,from which the vertical displacement of the drift with both sides the back filling body less than with the ore are obtained,and the stability of it is better.The result of numerical simulation is agreeable to the practice;it will be valuable to guide engineering construction.