There are considered the deformation processes in the soil body, resulting under the pulse action. Saturated soils play an important role in the study of such processes. This feature is related to short-term action. As a result of short-term action of excessive pressure, redistribution of water and air in the soil does not have time to occur and deformation is realized due to the air compression (reduction of water-ratio) and partially elastic compression of water and mineral matrix. In the low moisture soils mineral matrix receives most of the dynamic load, with considerable friction between the particles that prevents their mutual displacement and repacking, and hence the development of volumetric deformation. Increasing humidity results in improved particles repacking and increased density. However, at high rates of soil moisture, water receives dynamic load, which deformation is elastic and soil compaction reduces. Therefore, there is optimum moisture rate under dynamic loading, which achieves the highest packing. From the analysis of experimental curves it shows that this value is approximately equal to the optimum moisture content of 20%. The ability to achieve maximum compaction of soil at the optimum moisture content is at the core of the explosive method of soil compaction. The paper shows the results of soil compaction on the experimental plots. We describe the details of the research. It confirmed the effectiveness of the method.

Рассмотрены вопросы, связанные с деформацией грунтов при взрывном воздействии. Показано существенное влияние влажности на их деформационные характеристики. Дан подробный анализ семейства кривых динамического сжатия при различных значениях влажности грунтов. Приведены результаты прикладного применения энергии взрыва по уплотнению грунтового массива.