Study on the Underground Structure Reliability Based on the Re-Constitutional Mining Environment

The underground artificial structure is based on the reconstructed mining environment,and maintaining its reliability and stability is a prerequisite for realizing a safe,economical and efficient mining.First of all,the characteristics of the rockmass in deep underground and the strength of backfilling are analyzed objectively,and then the reliability analysis software NESSUS is introduced to make reliability study,connecting with the finite element software ANSYS.Finally,the reliability of stope structure of the Kelatongke Copper-Nickel Mine in Xinjiang province is simulated,getting the value of 0.940 586 5.By adjusting the correlative variables to optimize the reliability of the structure,the value of reliability increases to 0.967 374,which meets the design requirements.