Supergravity simulation system for in-situ stress field and seepage field of deep earth engineering

A supergravity simulation system for in-situ stress field and seepage field of deep earth engineering, comprising:

• a triaxial pressure chamber, configured to place a model and provide an in-situ axial pressure and a confining pressure of a deep earth structure and the seepage field in which the deep earth structure is located;
• a simulation control device, configured for providing a pressure liquid and a pore water to the triaxial pressure chamber to generate the axial pressure, confining pressure and seepage field, and controlling values of the axial pressure, confining pressure and seepage field;
• a signal acquisition device, configured to monitor a deformation and a seepage process of the model during simulation test;
• during the simulation test, the triaxial pressure chamber is placed on a supergravity centrifuge, and a centrifugal acceleration generated by the supergravity centrifuge is n times of gravity acceleration g (n is an integer greater than 1) to make the model in a supergravity state for generating a geostatic stress with gradient, and make the confining pressure liquid is in the state of supergravity for generating a confining pressure with gradient.