Test device for simulating three-dimensional bedrock and test method thereof

Abstract

The invention discloses a test device for simulating three-dimensional bedrock and a test method thereof. The device comprises an outer frame, a hoisting mechanism and a molding mechanism, the hoisting mechanism is mounted at the top of the outer frame; the molding mechanism is mounted below the outer frame in a sliding manner; the hoisting mechanism is detachably connected with an embedded part on the molding mechanism; the test device can be used for preparing high-precision simulated three-dimensional bedrock, and provides powerful prerequisite and basic conditions for the application and research of the problems of the relationship between an overlying structure and bedrock, the influence of the form of bedrock on geological disasters and the like in the research fields of geotechnicalengineering, hydrogeology, landslide, debris flow and the like.

Description

technical field [0001] The invention relates to the technical field of geotechnical simulation tests, in particular to a test device and a test method for simulating three-dimensional bedrock. Background technique [0002] Bedrock is a hard rock layer on the surface of the land, which is generally covered by soil layers and buried at different depths, ranging from a few meters to tens of meters to hundreds of meters. Bedrock is composed of one or several types of rocks in sedimentary rock, metamorphic rock, and igneous rock, and can be used as the foundation of large-scale construction projects. At present, issues such as the relationship between the overlying structure and bedrock and the influence of the form of bedrock on geological hazards are widely used in geotechnical engineering, hydrogeology, landslides, debris flows and other research fields. Due to the difficulty of 3D bedrock simulation, most In most cases, the simulation is performed by finite element simulatio...

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Problems solved by technology

At present, issues such as the relationship between the overlying structure and bedrock and the influence of the form of bedrock on geological hazards are widely used in geotechnical engineering, hydrogeology, landslides, debris flows and other research fields. Due to the difficulty of 3D bedrock simulation, most In most cases, the simulation is performed by finite element simulation software, or the problem is simplified to a two-dimensional situation for simulation. However, in this way, it is impossible to verify the rationality of the theory through more accurate experiments, or it is impossible to simulate the complexity of the bedrock working conditions so that It will reduce the persuasiveness of theoretical research. In view of the lack of three-dimensional bedrock simulation in geotechnical tests, there is a lack of an efficient, convenient and accurate experimental device for simulating three-dimensional bedrock forms.

[0003] At present, we have not found professional equipment for the preparation of 3D bedrock, and manual preparation is often time-consuming, and the accuracy is not only affected by the original bedrock data collection and scaling, but also by the sample preparation personnel. Influenced by cognition and hands-on ability, it is neither efficient nor convenient. In addition, manual operation cannot meet the high precision requirements. Therefore, the 3D bedrock prepared by hand has low precision, low efficiency, and cumbersomeness, and cannot accurately simulate the three-dimensional bedrock. wikirock

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