Abstract:
The artificial slope of Anjialing Open-pit Mine was taken as an engineering background and a systematic study on the distribution of potential slip surface in the rock slope was carried out by numerical simulation software FLAC
3D with the geotechnical plastic theory. The results show that there may be potential slip surface in artificial slope, as there is an obvious shear zone; there are multiple starting points in shear zone, especially slope foot, and starting points tend to interconnect with the progressive development, then the coexistence of multiple slip surfaces may appear; the fitting degree of curve equation of potential slip surface and parabola is higher, and the fitted curve equation of potential slip and its critical depth equation is obtained; shear strain increment area is larger than shear zone as inferior dangerous surface and it may turn into a potential slip surface under external disturbance.