Method for manufacturing weak-cementation sandstone model and based on image processing and 3D printing

Abstract

The invention discloses a method for manufacturing a weak-cementation sandstone model and based on image processing and 3D printing. The method comprises the following steps that step 1, a weak-cementation sandstone rock sample is scanned, and a digital image of the rock sample is obtained; step 2, the digital image is subjected to image processing, and a three-dimensional network model is obtained; and step 3, the three-dimensional network model is printed by a 3D printing method, and the weak-cementation sandstone model is obtained. According to the method for manufacturing the weak-cementation sandstone model and based on image processing and 3D printing, internal structure information of natural rock mass can be restored without a mold and a tool. Real internal complex structural information of the rock mass can be obtained by digital image processing, three-dimensional reconstruction and the 3D printing technology. The internal pore structure of the rock mass can be visually displayed and accurately represented. Repeated weak-cementation sandstone model manufacturing can be completed. A reference method is provided for mechanical property study and weak-cementation sandstone distribution study and the like.

Description

technical field [0001] The invention belongs to the technical field of sandstone model making, and more specifically relates to a method for making a weakly cemented sandstone model based on image processing and 3D printing. Background technique [0002] The rock mass has a natural fracture structure and the movement state of the fluid in the rock mass is extremely complex. How to quantitatively analyze the complex internal structure and physical and mechanical properties of the rock mass has always been a matter of great concern in the fields of geotechnical, mining, and geology. [0003] When studying the physical, mechanical and chemical properties of rock mass in the laboratory, the selected rock samples come from the same site or different sites, but even if the rock samples from the same site have different properties due to factors such as geological conditions and sampling, At the same time, the error of the experiment is increased due to the low repeatability rate o...

AI Technical Summary

Problems solved by technology

Regarding the internal structure, cracks, and seepage of rock mass, although scientists and engineers have carried out a lot of research, the pore structure, throat distribution and rock skeleton inside the rock mass are still very vague to researchers. , the existing methods and technologies are difficult to visually display and accurately characterize the internal pore structure of rock mass

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