在大型强夯试验研究的基础上,指出强夯处理中垫层虽具有防止粘锤现象和抑制表面振动波的松动作用的优点,但它毕竟要消耗一部分夯击能,这是它的负作用,消耗夯击能的大小主要与其级配相关。级配较好的垫层消耗夯击能较小,反之,消耗夯击能则较大。因此,在采用垫层的强夯处理中,必须要考虑垫层的级配情况,否则将浪费较大的夯击能或使地基处理失败。 On the basis of large-scale dynamic compaction test, it is pointed out that although cushion has the advantages of preventing stick-hammer phenomenon and restraining loose action of surface vibration wave in dynamic compaction, it is after all consuming a part of compaction energy, which is its negative effect , The size of the energy consumption of tamping mainly associated with its grading. Grading with better cushion consumption of tamping smaller, on the contrary, the consumption of tamping energy is larger. Therefore, in the process of dynamic compaction with cushion, the gradation of the cushion must be taken into consideration otherwise, the larger compaction energy will be wasted or the treatment of foundation will fail.