The novel nonlinear dynamics of dissipative optical solitons supported by introducing a V-shaped potential of antiwaveguiding structures are reported based on the two dimensional (2D) complex Ginzburg-Landau (CGL) equation with cubic-quintic nonlinearity. If the potentials are strong enough, they give rise to continuous splitting of expanding solitons from a cental soliton. The rate of splitting increases with the growth of potential intensity. For a weak potential, the stretch of the cental soliton into ellipse shape is observed instead. For a too strong potential, the central soliton dissipates. In addition, the influence of effective diffusion, gain and loss coefficient on the dynamic regimes is studied. Sufficient energy gain is necessary to maintain continuous splitting of the center soliton.