According to limit equilibrium theory and safety coefficient method, the calculation methods of landslide thrust forces are put forward, together with the transmitting coefficient method.

Under the same wall heat condition, with the increase of momentum correction coefficient, viscosity loss of the nozzle increases, but thrust and specific impulse decrease.

From the model, the landslide thrust and remanent sliding resistance behind the piles can be calculated with the limit equilibrium theory and coefficient of transmission method.