Deep rock in situ environment reconstruction and integrated three-dimensional mechanical-thermo-acousto-seismic-flow testing method

A deep rock in situ environment reconstruction and integrated three-dimensional mechanical-thermo-acousto-seismic-flow testing method, comprising the following steps:

• S1:
• preparing a cubic sample;
• S2:
• placing the cubic sample in a sample holder, wherein the sample holder is provided with ports that are adapted to indenters in upper, lower, left, right, front and rear directions;
• S3:
• respectively extending front ends of the 6 indenters into the sample holder from the ports of the sample holder in 6 directions to contact with six faces of the cubic sample;
• wherein the front end of each indenter is provided with a plurality of permeation holes, each indenter is provided with a seepage medium channel, and one end of the percolation medium channel is communicated with the plurality of permeation holes;
• the front end of the indenter is provided with a temperature sensor, a heat flow sensor, an acoustic emission probe and an ultrasonic probe;
• S4:
• placing the 6 indenters, the cubic sample and the sample holder in a box body, and mounting 6 butting indenters to 6 faces of the box body, wherein the butting indenters can move axially relative to the box body, and front ends of the 6 butting indenters are respectively butted with rear ends of the 6 indenters;
• S5:
• placing the box body on a loading frame beam of a three-axis six-direction loading system, wherein 6 hydraulic actuators of the three-axis six-direction loading system are each butted with a rear end of one of the butting indenters;
• S6:
• making inner edges of the ports of the sample holder in 6 directions in sealing contact with the cubic sample;
• S7:
• comprising:
• stress loading:
• performing stress loading on the cubic sample by using a hydraulic actuator;
• filling a fluid medium into the cubic sample through the percolation medium channel;
• wherein the following data are dynamically measured:
• fluid pressure, deformation of the cubic sample, percolation fluid flow, acoustic wave data and acoustic emission data.