Similar reconstruction model experiment device and method based on three-dimensional geological prospecting

Abstract

The invention discloses a similar reconstruction model experiment device and method based on three-dimensional geological prospecting. A three-dimensional geological prospecting device is used for prospecting three-dimensional geological information of a study area, then the three-dimensional geological information is input in a three-dimensional data reconstruction system and reconstructed into three-dimensional data information, and the three-dimensional data information is input in a 3D printing device; similar materials and ratios corresponding to different geological structures are determined, and then three-dimensional stratigraphic section geological information of the study area is determined according to the three-dimensional data information; a 3D printing coal rock is printed ina model frame through a 3D printing device according to the geometric similarity rate and the volume-weight similarity rate, and a data monitoring device is mounted in the 3D printing coal rock; a hydraulic loading unit is started to apply loads; analogue simulation is carried out corresponding to the actual rock soil activity condition of a site, data in the data monitoring device is collected in the activity process, thus, the underground rock stratum real condition and rock stratum activities are accurately reflected, and meanwhile stress and displacement multi-site time varying monitoringand analyzing are achieved.

Description

technical field [0001] The invention relates to a similar reconstruction model experimental device and method based on three-dimensional geological exploration, belonging to the field of underground rock engineering physics simulation experiments. Background technique [0002] In the process of mining resources, the "three down" mining overburden subsidence control and ecological restoration of mining areas have become a major demand of the coal industry and the country. Due to the complex and changeable geological occurrence conditions, accurate prediction of the structure characteristics and migration rules of the overlying rock in the stope, the development of rock mass fissures, the characteristics of surface subsidence, mine pressure and its appearance seriously affect the surface structures, traffic and the water content of the overlying strata. layer and surface water bodies. [0003] In the field of underground engineering, similar simulation tests have become an im...

AI Technical Summary

Problems solved by technology

However, at present, due to the opacity of similar materials, backward monitoring equipment and methods, etc., it is impossible to monitor and analyze the stress and displacement of the entire model in the whole process of multi-field time-varying during the experiment

At present, under the action of dynamic and static loads, the internal deformation and failure characteristics of the rock-soil model and the lack of key parameters of the complex stress evolution law seriously affect the subsidence control of the overlying rock and the ecological restoration of the mining area in the "three-down" mining.

[0004] Not only that, due to the size limitation of the physical simulation experiment, its laying needs to adjust the proportion of simulated materials in different rock formations according to the drilling conditions, and then after stirring, it is manually laid on the physical simulation test stand, the laying accuracy is poor, and it is difficult to reflect the real situation

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