CT-Scanning Hydro-Mechanical Coupling Device for Coal Rock Testing
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Solution Overview
Problem
Current research lacks the ability to restore mechanical properties of coal and rock mass under water immersion and observe destructive characteristics in real-time due to limitations in experimental conditions and the inability to measure mechanical properties in a hydraulic pressure environment.
Innovation Solution
A hydro-mechanical coupling experimental device with a CT real-time scanning system, featuring a support frame, hydro-mechanical coupling mechanism, and a jack, which includes a pressure box, stress-strain data acquisition instrument, and a CT scanning room, allowing for the simulation of water immersion and real-time observation of mechanical properties and destructive characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If mechanical properties are measured after separating from liquid and hydraulic pressure environment, then measurement can be performed with existing equipment, but the mechanical properties cannot be really restored and mesomechanics destructive characteristics cannot be observed in real time
Solution Approach 1:
The patent introduces a transparent pressure box as an intermediary device that allows the sample to be subjected to hydraulic pressure while remaining visible to the CT scanner. The pressure box serves as a mediator between the hydraulic pressure environment and the CT scanning system, enabling simultaneous application of pressure and real-time observation without requiring the sample to be removed from the pressure environment.
Solution Approach 2:
The patent replaces traditional mechanical measurement systems with a CT scanning system for observation. Instead of using mechanical sensors or physical measurement tools that would require sample removal or disrupt the hydraulic environment, the CT scanner provides non-contact, real-time imaging of the sample's internal structure and mechanical properties under pressure.
2Ease of manufacture
If experimental conditions are limited, then existing equipment can be used, but mesomechanics destructive characteristics inside the coal and rock mass cannot be observed in real time
Solution Approach 1:
The patent creates a multi-functional experimental system where the same apparatus serves multiple purposes: the transparent pressure box provides both hydraulic pressure application and optical transparency for imaging, the CT scanner provides both structural imaging and real-time observation capabilities, and the entire system enables both mechanical property measurement and destructive characteristic detection in a single integrated setup.
Solution Approach 2:
The transparent pressure box acts as an intermediary that bridges the hydraulic pressure environment with the CT scanning system, allowing the sample to remain immersed in water under pressure while being continuously observable by the CT scanner without requiring sample removal or disruption of the experimental conditions.
3Difficulty of detecting and measuring
If CT scanning is implemented for real-time observation, then mesomechanics destructive characteristics can be observed in real time, but the experimental device becomes more complex
Solution Approach 1:
The patent integrates the CT scanning system with the existing hydro-mechanical testing apparatus to create a multi-functional device that can perform both mechanical loading and real-time CT imaging. The transparent pressure box serves dual purposes as both a pressure containment vessel and an imaging window, reducing the need for separate components and minimizing overall system complexity despite adding CT capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the restoration of mechanical properties and real-time observation of mesomechanics destructive characteristics within coal and rock mass, providing valuable data on hydro-mechanical coupling effects and enhancing safety in deep mining operations.
Implementation Method 1
a hydro-mechanical coupling experimental device with computed tomography (CT) real-time scanning
Implementation Method 2
the mechanical properties of the immersed coal and rock mass cannot be really restored, and due to limitations of experimental conditions, mesomechanics destructive characteristics inside the coal and rock mass cannot be observed in real time
Implementation Method 3
a compression leg slidingly worn on a top of the experimental box
Implementation Method 4
the stress-strain data acquisition instrument is connected to the pressure box through the data wire
Data Source
AI summary
Disclosed are a hydro-mechanical coupling experimental device with CT real-time scanning and a use method thereof. The hydro-mechanical coupling experimental device with the CT real-time scanning includes a CT scanning room and further includes a support frame, a hydro-mechanical coupling mechanism and a jack that are arranged in the CT scanning room. The support frame includes a base, a top plate, a plurality of columns for arranging the top plate and the base at intervals, and a movable plate that is arranged between the top plate and the base and can slide on the plurality of columns. The hydro-mechanical coupling mechanism includes an experimental box, a pressure box arranged inside the experimental box and a compression leg slidingly worn on a top of the experimental box; and the experimental box is arranged on the movable plate, and the jack is arranged on the base.