Fractal intersection fracture seepage flow experimental system and experimental method

Abstract

The invention discloses a fractal intersection fracture seepage flow experimental system and an experimental method and belongs to the field of geotechnical engineering. The experimental system comprises a water storage tank, a water guide pipe and a water head tank, wherein a water inlet is formed in the water head tank; water flow passes through the water inlet and then enters an experimental main body; the experimental main body comprises an intersectional hollow flow channel slot and a cover plate thereon; a fractal intersection fracture parallel-plate physical model for 3D printing is arranged in the hollow flow channel slot; the model is made by constructing a rough fractal curve based on a fractal function, establishing a three-dimensional stereoscopic model according to the curve by virtue of software and printing by virtue of 3D printing equipment; the model comprises rough fractures and smooth fractures intersecting with one another; the rough fractures and smooth fractures have the same seepage path length; the water outlet is connected with the water collection tank; a water level monitor is arranged above the water collection tank; the water collection tank is connected with the water storage tank by virtue of a communicating pipe; the experimental system further comprises an intelligent regulation device; a pressure sensor and the water level monitor are respectively connected with the intelligent regulation device. The experimental system is applicable to study on the fractal intersection fracture seepage flow experiment.

Description

technical field [0001] The invention belongs to the field of geotechnical engineering, and relates to a fractal cross-fissure seepage experimental system and an experimental method based on 3D printing technology, which can realize the coupling effect of multiple test working conditions. Background technique [0002] Most of the rock mass medium in nature is buried deep underground, and its occurrence environment is complex and changeable, and there are a large number of fractures with different occurrences, properties, and scales, and the seepage characteristics and mechanical properties of the fractured rock mass interact. , jointly affect the stability of geotechnical engineering, geological engineering, mining and unconventional natural gas extraction projects. In nature, the real rock mass fracture structure is quite complicated, which is the result of multiple groups of fracture units with different geometric structures superimposing, interlacing, and cutting the compl...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to fill the gaps in the prior art, provide a fractal intersecting fissure seepage experimental system and experimental method that can change multiple variables to study rough fractal intersecting fissure water seepage, and overcome the shortcomings of the prior art Experimental equipment cannot easily and quickly adjust the fractal dimension of rough cracks, crack width and pressure head, etc., intelligent and environmentally friendly, easy to operate

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