Abstract：According to the engineering practice of deep main ore pass collapse in an underground metal mine, finite element analysis method was used to analysis the damage situation of this main ore pass. The serious collapsed range was determined from -455 to -464m level preliminarily, in which the maximum displacement of the shaft wall is more than 10m. The main collapse area is in the northwest of the main ore pass, and the maximum compressive stress is 41.750MPa. On this basis, the real three-dimensional data of collapse area was achieved by CMS detection and three-dimensional visual model of the deep main ore pass collapse area. It was determined that, the main collapsed ranges from -457 to -463m level, and the horizontal maximum collapse area is 92.92m2, with main direction of collapse 28° north by west. The major axis is 14.5m, and the minor is 8.1m. The total collapse volume is 1035m3. Comprehensive analysis showed, the finite element analysis result is basically anastomosed with the measured result, and both of the methods verified and complemented mutually. The stress collapse damage of main ore pass is determined accurately and it establishes a firm foundation for formulating a reasonable restoration scheme of deep main ore pass.
罗周全;贾楠;谢承煜;谭浪浪. 深部主溜井垮塌的有限元分析及实测验证[J]. , 2013, 31(23): 26-30.
LUO Zhouquan;JIA Nan;XIE Chengyu;TAN Langlang. Finite Element Analysis and Measured Validation of Deep Main Ore Pass Collapse. , 2013, 31(23): 26-30.