Ground subsidence induced by salt cavern gobs under the planned Zhangshu Modern Pharmaceutical Logistic Center determines the feasibility of the project. Mogi model is a ground movement prediction model based on the principle of semi-infinite elasticity

which has been widely used in the modeling of the deformation of volcanoes caused by pressure changes in their magma chambers. With the consideration that the main cause of salt cavern-induced subsidence is the volume shrinkage of caverns

the analytical solution of the salt cavern in steady state creep is introduced to improve the Mogi model and the improved model is used to predict the subsidence of Pharmaceutical Logistic Center. The superposition method is cited to gain the subsidence of the cavern group. The results show that: the ground subsidence and tilt induced by cavern groups are within the scope of building foundation settlement rule

and along with the increase of the distance to cavern groups

the ground tilt firstly increases

and then decreases. What else

the results by Mogi model are in accordance with the numerical simulation. The improved Mogi model provides an accurate and fast method for the ground subsidence analysis of salt cavern groups.