Method for manufacturing direct shear test structural plane model

Abstract

The invention relates to a method for manufacturing a direct shear test structural plane model. The method comprises the following steps of: (1) the selection and the processing of a virgin rock structural plane: selecting a virgin rock structural plane to be used as a sample, and leveling an original structural plane of the rock mass; then coating a mould release agent at a selected position determined according to the specific size of a structural plane model, and spreading an isolating membrane; (2) putting a lower mould on the selected position of the original structural plane, and pouring a uniformly stirred mixed material into the lower mould; after carrying out water retention maintenance on the sample, turning over a lower disk structural plane sample together with the lower mould, and removing the used isolating membrane on the lower disk structural plane; (3) coating the mould release agent on the prepared lower disk structural plane, and spreading the isolating membrane; centering and putting an upper mould on a lower mould, and then pouring a uniformly stirred mixed material of weighed raw materials into the upper mould again; and (4) demoulding. The method has specific principle, strong maneuverability, low cost and good use effect.

Description

technical field [0001] The invention belongs to the technical field of engineering, and relates to a method for making a structural surface model of a direct shear test, which is applicable to the structural surface shear strength and roughness coefficient of the structural surface in water conservancy, transportation, mining, geology, nuclear waste disposal, petroleum and other related projects Determination of engineering design parameters. Background technique [0002] Rock structural planes are geological interfaces with different origins and characteristics in rock bodies, including material differentiation planes and discontinuous planes, such as bedding, schistosification, faults and joints. The existence of structural planes destroys the continuity and integrity of the rock mass, and it is precisely because of the existence of structural planes that rock slopes often suffer from disasters such as landslides. Therefore, the study of structural planes in rock mass is a...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the shortcomings of the existing method for making samples of rock structural surfaces, such as high implementation cost, unreliable results or inability to reflect particularity, the present invention provides a method with clear principle, strong operability, low cost, good use effect, and convenient for experimental research. Method for making structural surface model of direct shear test and engineering application