A Feasibility Study on Monitoring Pile-Soil Bonding Condition Using Piezoceramic Transducer and Horizontal Impact

Table 2

Test cases in groups A and B.

Group A	Case	1	2	3	4
	Crack depth (cm)	0	5	10	15
	Crack range (degree)	90
Group B	Case	1	2	3	4	5
	Crack depth (cm)	5
	Crack range (degree)	0	90	180	270	360