| Abstract: | A model of water-saturated soil as an ideal liquid has already been proposed 1], Experimental investigations of shock waves 2] have shown that for small stresses in water-saturated soil features of a solid plastic body begin to manifest themselves. As regards its properties the soil approximates to the model proposed in 3].The results of tests on the interaction of a plane shock wave in the soil with a moving obstacle are given below. As a development of papers 2,4, 5] an approximate solution is given for the problem of the interaction of waves with an obstacle. At high pressures the ground is regarded as nonlinearly elastic, and at low pressures as a plastic medium. A similar approach may be applied to water-saturated and nonsaturated soils when the wave is a shock wave. Experimental values of the parameters of motion of the obstacle are compared with the results of calculation.The authors are grateful to S. D. Mizyakin for participating in the tests. |
