Aimed at a new type of cable seal structure, the finite element model of sealing buffle plate, sealing
plate, rubber plate and bolt were established. Considering the geometric nonlinear, boundary nonlinear and material
nonlinear, the stress and strain of the structure under the action of pressure and bolt load were calculated. Moreover,
the stiffness of the structure was investigated in the paper. The results show that the local stiffness of cable seal struc鄄
ture is yield and the material should be changed; Moreover, the sealing of the structure is finer, which is proved rea鄄
sonable by the sealing experiment.