Multi-scale and multi-parameter collaborative testing device and method for true triaxial hydraulic fracturing

A multi-scale and multi-parameter collaborative testing device for true triaxial hydraulic fracturing, comprising a frame, a true triaxial chamber, a clamping and loading device, a water supply device, an oil supply device, a CT scanning module, an electrical testing module, an acoustic emission testing module, a strain testing module, a magnetic testing module, a computer, and a display screen;

• the clamping and loading device is fixed into the frame, the true triaxial chamber is placed in the clamping and loading device, and the clamping and loading device penetrates through the true triaxle chamber and then is connected to a rock specimen;
• the oil supply device is connected to the true triaxial chamber, and is configured to supply oil into the true triaxial chamber;
• the water supply device penetrates through the clamping and loading device and then is connected to the rock specimen, and is configured to provide high-pressure water for the rock specimen;
• the electrical testing module, the acoustic emission testing module, the strain testing module and the magnetic testing module are respectively fixed to the clamping and loading device and are connected to the rock specimen;
• the CT scanning module is located on the front side and the rear side of the true triaxial chamber;
• the CT scanning module, the electrical testing module, the acoustic emission testing module, the strain testing module and the magnetic testing module are connected to the computer;
• and the computer is electrically connected to the display screen.