The results of 3D electrical resistivity detection are non-unique,and could easily lead to errors in geological interruption and even misjudgment.A solution is proposed to solve this problem,in which the reference model constraints constructed by the known information from other geological methods are applied to the inversion equation.The electrical resistivity information is gained by the geological drilling,and the boundary information of anomalous bodies is obtained from ground penetrating radar(GPR).All...