Research on technology of abandoned quarry complex rock slope stability calculation

For the abandoned quarry complex rock slope project, the slope stability calculation is always the key technical problem, but due to the complex geological conditions and other factors, it makes the calculation of 3D modeling and the stability of the slope geological body and structure of the division, rock unit has always been the difficult problems in the field. This paper proposes a new method based on the rock mass structure combined with the degree of rock mass element, and then FLAC 3D, Midas GTS three-dimensional numerical calculation software are used, structure and surface topography in the slope, the slope surface fault, soft interlayer, complex geological 3D modeling, overcomes the problem of modeling of complex geological body, and the factors of rainfall, earthquake effect of the slope are consider for stability calculation, the calculation result is consistent with the reality, it has certain directive significance to the abandoned quarry re-greening slope stability analysis.