Accurate evaluation method for rock mass engineering stability of mine slope

Abstract

The invention discloses a mine slope rock engineering stability accurate evaluation method. The mine slope rock engineering stability accurate evaluation 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 the scale of stratification, foliation, phyllitic foliation, schistosity, faultage, and jointing is carried out; 2, the slope grade and scale are determined, and the slope rock developed structural surfaces are subjected to grading; and 3, the slope surface inclination direction and inclination angles determined, the slope surface inclination direction and 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 corresponding structural surfaces of potential slide surfaces determined by the analysis on the overall stability potential failure mode of mine rock total slope and the potential slid directions of the corresponding structural surfaces are subjected to structural surface shear strength accurate evaluation, and the structural surface shear strength parameters obtained via accurate evaluation are adopted for accurate evaluation of mine rock total slope overall stability. The mine slope rock engineering stability accurate evaluation 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 accurately evaluating the stability of a rock mass engineering of a mine slope, which is suitable for the occasion of evaluating the stability of the rock mass engineering of a mine slope according to the investigation of the structural plane of the rock mass 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...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the inadequacy of existing technologies that cannot accurately evaluate the stability of mine slope rock mass engineering according to the different influences of different scale structures on the stability of mine slope rock mass, the present invention provides a simple in principle, convenient to operate, It is an accurate evaluation method with low cost, good use effect, and easy realization of the stability of mine slope rock mass engineering, which creates necessary conditions for accurate calculation of mining design