Collaborative testing system for elastic wave and tensile damage of rock

An integrated acoustic detection and rock direct tensile test machine, comprising:

• a support frame;
• a top plate affixed to a top of the support frame;
• a bearing plate provided above the top plate;
• a plurality of force transfer rods having an upper end affixed to the bearing plate, wherein the plurality of force transfer rods extend through the top plate and are in a sliding fit with the top plate, a lower end of the plurality of force transferring rods are affixed to a tensile base;
• a lower clamp holder disposed above a top of the tensile base;
• an upper clamp holder disposed below a bottom of the top plate, wherein a clamp center of the upper clamp holder coincides with a clamp center of the lower clamp holder;
• an upper channel is provided inside the upper clamp holder, a first end of the upper channel is communicated with the outside, a second end of the upper channel is provided with an acoustic transmitting probe, wherein a transmitting direction of the acoustic transmitting probe is downward;
• a lower channel is provided inside the lower clamp holder, a first end of the lower channel is communicated with the outside, a second end of the lower channel is provided with an acoustic receiving probe, wherein the acoustic receiving probe is configured to receive a vertically downward acoustic wave;
• an upper horn-shaped sealing sleeve disposed between the acoustic transmitting probe and an inner wall of the upper channel;
• and
• a lower horn-shaped sealing sleeve disposed between the acoustic receiving probe and an inner wall of the lower channel.