Mine slope rock engineering stability grading analysis method

Abstract

The invention discloses a mine slope rock engineering stability grading analysis method. The mine slope rock engineering stability grading analysis method comprises following steps: 1, at surfexpert mine in the field, rock structural surface development states in a slope rock ranges are studied, wherein on-site measurement of the occurrence and scale of stratification, foliation, phyllitic foliation, schistosity, faultage, and jointing is carried out, and obtained results are subjected to logging respectively; 2, the slope rock developed structural surfaces are subjected to grading, wherein, faultage with the scale of stratification, foliation, phyllitic foliation, schistosity, and structural surface equal to or larger than a times of the total slope scale are taken as through structural surfaces, the structural surfaces with scale lower than a times of that of the total slope scale are taken as non-through structural surfaces, and the jointing are taken as small-scale structural surfaces; and 3, the slope surface inclination direction and inclination angles determined based on mine total slope design state, the slope surface inclination direction and the inclination angles, and the inclination direction and the inclination angle of the through structural surfaces are adopted for forming a stereogram, and analysis on the overall stability potential failure mode of mine rock total slope is carried out. The mine slope rock engineering stability grading analysis method is simple in principles; operation is convenient; cost is low; and application effect is excellent.

Description

technical field [0001] The invention relates to a method for graded analysis of the rock mass engineering stability of a mine slope, which is suitable for evaluating the stability of the rock mass engineering of a mine slope based on the investigation of the rock mass structure plane of the mine slope in the field. Background technique [0002] Structural planes of different scales are developed in the engineering rock mass of mine slopes, and mine slopes are often equipped with a series of stepped slopes on the basis of the overall slope according to mining needs. The stability evaluation of mine slopes not only needs to evaluate the stability of the overall slope, but also needs to evaluate the stability of the step slope. Studies have shown that the stability of mine slopes is controlled by rock mass structural planes: the occurrence, scale, and combination of structural planes and their spatial combination with slope surfaces determine the potential failure modes of mine...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the different influences of the existing technology on the stability of the rock mass of the mine slope according to different scale structures, the graded analysis of the stability of the rock mass of the mine slope is carried out, so as to realize the insufficiency of the accurate evaluation o...