Transparent Soil Test Box for Adjustable Surrounding Rock Pressure
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Solution Overview
Problem
Conventional soil model test boxes lack transparency and the ability to adjust surrounding rock pressure, making it difficult to observe internal deformation of soil mass and simulate deep-buried squeezing surrounding rocks effectively.
Innovation Solution
A visible transparent soil model test box with adjustable surrounding rock pressure, comprising pressure plates, force transferring plates, bolt assemblies, and pressure boxes, allowing for the adjustment of rock pressure by changing the thicknesses of pressure plates and controlling pressure through pressure boxes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a traditional steel plate model test box is used, then the structural strength and sealing are improved, but the transparency and observability of internal deformation are lost
Solution Approach 1:
The patent applies transparency (optical property) to the test box walls, allowing light to pass through so that internal deformation of the soil mass can be directly observed. This resolves the contradiction by making the box transparent rather than opaque like traditional steel plates.
2Device complexity
If a traditional test box is used, then the device complexity is reduced, but the ability to adjust surrounding rock pressure independently is lost
Solution Approach 1:
The pressure application system is segmented into multiple independent pressure plates (left, right, upper) that can be adjusted separately. Each pressure plate can be independently controlled to apply different pressures in different directions, enabling independent adjustment of surrounding rock pressure while maintaining reasonable device complexity.
Solution Approach 2:
The pressure plates are designed to be adjustable and movable, allowing the surrounding rock pressure to be dynamically changed during experiments. This enables adaptation to different experimental conditions and simulation of various deep-buried rock pressure states.
3Loss of information
If transparent soil technology is used, then the visualization of internal deformation is improved, but the inability to adjust surrounding rock pressure becomes a limitation
Solution Approach 1:
The pressure application system is divided into multiple independent pressure plates that can be adjusted separately, allowing the transparent soil model test box to achieve independent adjustment of surrounding rock pressure in different directions while maintaining transparency for visualization.
Solution Approach 2:
The test box combines both transparency for visualization and adjustable pressure plates for pressure control into a single system, making it universally applicable for studying deep-buried squeezing surrounding rock deformation mechanisms with both observation and pressure adjustment capabilities.
Data Source
AI summary
Provided are a visible transparent soil model test box with an adjustable surrounding rock pressure and a manufacturing method therefor. The visible transparent soil model test box includes pressure plates, force transferring plates, bolt assemblies and pressure boxes. The model box is assembled by the bolt assemblies, and then transparent soil is poured into the box. During the pouring of the transparent soil, the pressure boxes are buried inside the transparent soil and at inner sides of a left pressure plate, a right pressure plate and an upper pressure plate. After the transparent soil is consolidated, nuts are screwed to push the force transferring plates and the pressure plates by pressure gaskets to move inward to squeeze soil mass, and the pressure is controlled through readings of the pressure boxes, thus achieving automatic regulation of the surrounding rock pressure.