Abstract:
To avoid intense deformation and serious failure of south end slope in Baorixile Surface Mine to cause landslide disaster, this paper analyzes its deformation mechanism and failure mode, and deduces its present situation and long-term stability, based on in-situ geological survey and rock and soil's physical-mechanical parameters. And taking the current state and future planning of mine exploiting into account, the pressing slope foot method is suggested as an effective measurement, which effect is also analyzed in this paper. Results show that the slope stability coefficient can reach 1.204 if the following measurement project is carried out: 115 m length of the pressing foot with 25 m height of single step at +610 m flat plate and 137 m length of the pressing foot with 20 m height of single step at +625 m flat plate. The rationality of above measurement is described and verified by numerical calculation. Besides, narrow strip hierarchical fast mining and internal dumping at potential landslide area can ensure the safe and efficient recovery of coal resources.