【摘要】 强夯作用下土体的变形是一种耗散结构，强夯过程中土体向稳定状态进化的宏观表现为夯沉量的变化。以强夯边界问题解答为基础，计算出夯击效能及夯击效能系数，对于同种土体，夯击效能系数只与夯击因素有关。并结合耗散理论分析不同夯击能和土体密度组合下夯沉量随夯击次数的变化规律。研究表明：随夯击次数的增加，夯沉量和夯击效能系数均趋于某一稳定值；在相同单击夯击能下，夯前土体的初始密度对前几次夯击时夯击效能有影响，对后续的夯击效能影响较小；在相同土体密度下，不同的夯击能对应不同的稳定态，夯击能越高稳定态越高，夯点的累计夯沉量越大。更多还原

【Abstract】 The deformation of soil is a kind of dissipative structure under the action of dynamic compaction. The macroscopic changes of the soil evolves to stable state is the change of ramming settlement in the process of dynamic compaction. Based on the existing solution of dynamic compaction boundary problem, the tamming effeciency and tamming efficiency coefficient were calculated. For the same soil, tamming efficiency coefficient was related to ramming factor. Combined with dissipation theory, the variation law of tamping weight with the number of tamping was analyzed under different combination of tamping energy and soil density. Research shows that with the increase of tamping times, both the tamping weight and the tamping efficiency coefficient tend to a stable value. Under the same one-click tamping energy, the initial density of soil before tamping has an effect on the tamping efficiency of the first few times, but has little effect on the subsequent tamping efficiency. Under the same soil density, different tamping energy corresponds to different stable states. The higher the tamping energy, the higher the stable state, and the greater the cumulative tamping settlement of the tamping point.更多还原