Stress-strain control type direct shear apparatus

The utility model provides a stress-strain control type direct shear apparatus comprising a square shear box. The square shear box is formed by an upper shear box and a lower shear box and is used for containing a rock soil body test sample; a vertical pressure loading mechanism for supplying a vertical load to the rock soil body test sample is arranged at the upper end of the upper shear box; one end of the lower shear box is matched with a horizontal shear loading mechanism for a stress control type direct shear test, and the other end of the lower shear box is matched with a horizontal loading mechanism for a strain control type direct shear test; and the horizontal loading mechanism comprises a torque conversion box on a test platform and a horizontal load tension and pressure sensor which is connected with the torque conversion box and the lower shear box respectively. The stress-strain control type direct shear apparatus provided by the utility model not only can be used for carrying out the stress cont