Real-time loading, heating and leaching test device in CT scanning process

Abstract

The invention relates to a real-time loading, heating and leaching test device in a CT scanning process, and belongs to the technical field of indoor rock loading tests. The device mainly structurallycomprises a fixed frame, a pressure loading part, a mechanical rotating part, a liquid leaching part and a displacement sensor. An oil cylinder and a base of the device rotate through an upper rotating bearing and a lower rotating bearing, and an upper transmission gear and a lower transmission gear are meshed with an upper small gear and a lower small gear of a transmission rod to achieve synchronous rotation of the oil cylinder and the base. The device avoids the use of a sleeve to realize uniaxial loading, and avoids the great attenuation of rays after the rays pass through a metal material. And the liquid temperature is jointly adjusted by the temperature sensor and the heating rod. Microscopic CT real-time scanning can be achieved while the test piece is subjected to heat-force-liquid coupling, a stress-strain curve in the loading process of the test piece can be obtained, and the implementation method that expansion of hole fractures corresponds to the constitutive relation in the heat-force-liquid coupling process of the test piece is provided.

Description

technical field [0001] The invention relates to the technical field of rock chamber loading tests, more specifically, to a real-time loading, heating and leaching test device during CT scanning. Background technique [0002] CT (Industrial Computer Tomography) scanning technology is industrial computer tomography imaging technology. It is a non-destructive detection technology that can clearly, intuitively and accurately display the internal structure and condition of the detected object. It is widely used in industrial production in various fields. . The rock testing machine is a basic test instrument for studying the constitutive relationship of rocks. By combining with the CT testing machine, it is possible to visually observe the internal state changes of the sample under compression. [0003] Studying the deformation of rocks in complex environments has important guiding significance for engineering practice. Research at home and abroad shows that the real-time loadin...

AI Technical Summary

Problems solved by technology

Research at home and abroad shows that the real-time loading scanning instrument combined with CT is in the preliminary research and development stage. China University of Mining and Technology has studied a real-time loading device combined with CT, but it can only realize the mechanical loading function of a single physical field.

Taiyuan University of Technology has studied the loading device combined with CT, but it cannot realize the real-time loading function during the scanning process

Invention patent CN105928793A discloses a rock mechanics testing machine placed on a turntable, which mainly solves the problem of relative rotation between rock and soil samples and CT scanners

However, the mechanical research of rocks under multi-field coupling is still not satisfactory.

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