Manufacturing method for rock-surface-morphology-similar model structural plane

Abstract

The invention provides a manufacturing method for a rock-surface-morphology-similar model structural plane. The method comprises the following steps: step 1, three-dimensional scanning of the surface morphology of a rock structural plane: a step of subjecting the selected rock structural plane to surface cleaning, and shooting the surface of the rock structural plane by using a three-dimensional scanner so as to obtain measured data of three-dimensional surface undulation morphology of the structural plane; step 2, generation of a three-dimensional model: a step of completing compositing of the scanning data by using reverse engineering software, and completing digitalization of a surface undulation morphology model of the rock structural plane, thereby generating the three-dimension geometric model; and step 3, processing of the model structural plane: according to the three-dimensional geometric model, realizing processing of a molded surface with the three-dimensional surface morphology on the surface of a testing model so as to obtain the rock model structural plane with the surface undulation morphology similar to that of the rock structural plane. The manufacturing method provided by the invention can satisfy requirements on manufacturing of the rock model structural plane with similar surface morphology without sampling of a field structural plane; meanwhile, the method is free of the disadvantages of difficult sampling of the field structural plane and high testing cost and has good operability and practicability.

Description

technical field [0001] The invention belongs to the technical field of engineering, and relates to the production of structural surfaces of rock models with similar surface shapes, which are used for simulating similar surface shapes of rock model structural surfaces of different sizes, and are applicable to the use of rock structural surfaces in related projects such as water conservancy, transportation, mining, and geology. Determine the engineering design parameters such as the shear strength of the structural surface. Background technique [0002] The characteristics of the direct shear test of the rock discontinuity determine that only one destructive test can be carried out on the discontinuity of the original rock. For this reason, in the study of the size effect of the shear strength of the discontinuity, the model sample is often used instead of the disposition of the original rock. Direct shear tests of different sizes. Surface relief of discontinuities is the mai...

AI Technical Summary

Problems solved by technology

[0003] The patent number is ZL200910154781.9, which proposes a method for making structural surface models for direct shear tests. This method is based on the structural surface of the original rock as the bottom template, that is, making model structural surfaces of different sizes on the structural surface of the original rock. The premise of the method is to go to the field to collect the structural plane of the original rock. Of course, various difficulties such as sample selection, sampling, processing, and transportation cannot be avoided during the sampling process of the structural plane; Finishing on this structural surface will damage the structural surface of the original rock and increase the test cycle