Field rapid identification method of potential slip surface of rock mass in mine slope

Abstract

The invention provides a method for quickly distinguishing potential glide plane of a mineral slope rock outdoors. The method comprises the following steps: investigating the engineering geological condition in the slope rock range in outdoor surface mine to partition the engineering geology, and numbering each partition; and partitioning the mineral slope, numbering the mineral slope of each partition, collecting pictures of the mineral slope of each partition, and recording; measuring the height and width of the slope and the aspect and angle of the slope; partitioning according to the slope, measuring the occurrence of the structural plane running through the whole slope, and distinguishing the glide plane according to the included angle between the structural plane dip and the slope plane if the dip angle of the structural face is smaller than or equal to the slope angle; gradually measuring the fault occurrence of a nonpenetrative slope, and distinguishing the slope plane according to the included angle between the fault plane dip and the slope plane dip if the dip angle of the fault is smaller than or equal to the slope angle; and gradually measuring the joint set occurrence, and distinguishing the glide plane according to the included angle between the joint set dip and the slope plane dip if the dip angle of the joint set is smaller than or equal to the slope angle. The method is simple in principle and convenient to operate, and is low in cost and good in use effect.

Description

technical field [0001] The invention relates to a field rapid identification method for the potential slip surface of a mine rock mass slope, which is suitable for accurately measuring the structural surface roughness coefficient (JRC) corresponding to the potential slip surface of a mine rock mass slope in the field to conduct a mine rock mass slope The occasions where the shear strength of the structural plane is accurately determined. Background technique [0002] The structural plane shear strength of rock mass in mining engineering has the characteristics of anisotropy, anisotropy, non-uniformity and size effect. The structural surface outcrop is randomly selected for JRC measurement, and the structural plane shear strength is evaluated according to the JRC-JCS model. It will lead to the distortion of the value object, the replacement of the overall value with the individual value, and the failure to take the value in the required direction, etc., resulting in serious d...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the inability of the existing technology to find the structural plane corresponding to the shear strength of the rock mass structural plane of the mine slope in the field, JRC accurate measurement is carried out to realize the accurate determination of the shear strength of the rock mass structural plane of the mine slope. Insufficient value, the present invention provides a mine slope rock mass potential slip surface field rapid detection method with simple principle, convenient operation, low cost, good use effect, and easy to realize the accurate value of the shear strength of the mine slope rock mass structural plane shear strength. Discriminant method to create necessary conditions for accurate calculation of mining design

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