Research on the function test of the porous media system in tunnel construction based on virtual computer simulation mathematical model

The application of computer image virtual reality technology in civil engineering has very obvious practicability. In this paper, one of the AutoCAD 3D models of virtual simulation is built with the help of a computer system, and a fast conversion process is generated. At the same time, a computer program is developed in this paper. The mathematical model of surface subsidence of porous media in civil engineering tunnel construction is constructed based on the fractional differential equation medium theory. Through this model's data analysis and model research, the application functions of tunnel construction crack control simulation, visual query, and comprehensive analysis are realized and verified.