The original design of the mixed well section of a molybdenum mine in Hei-longjiang,which diameter is 6 m and depth is 1 240 m,adopts 500 mm thickness of the concrete support in addition to the neck of well. This paper adopts empirical method to de-sign shaft lining thickness as preliminary design,and then the large commercial specialized geotechnical software MIDAS/GTS is used to model well shaft,comparing the stress and the strain of rock and support system in different supporting thickness through the numerical simulation analysis,and thus to determine the economic and reasonable support th...
