Mathematical modeling of the boarding boring pillar is made on the bore hole face for study of the connecting processes, appearing in consequence of boarding. They are considered physical processes to deforming the pillar. It is received mathematical model of the connecting processes, consisting of problem Koshi for ODE of the second order, which describes the offset of the centre of the masses and marginal problem for hyperbolic equation in quotient derived, characterizing process of the spreading to deformation on pillar.