Study on Dynamic Strain Regularity and Influencing Factors of Shallow Buried Metal Pipe under Collapse Impact Load

Table 3

Impact experiment scheme of the buried pipeline.

Condition	Mass of hammer (M/kg)	Height of collapse (H/m)	Pipe-soil stiffness ratio (R)
1	8	8	1.60
2	16	6	1.602
3	32	4	1.602
4	8	4	1.215
5	16	8	1.215
6	32	6	1.215
7	8	6	0.843
8	16	4	0.843
9	32	8	0.843