Table 2: The convergence of the vertical impedance of a single strip footing.

Na0 = 0.25a0 = 1.0a0 = 2.0
KCKCKC

100.4220.3320.4251.0150.3442.125
200.4230.3360.4251.0330.3522.165
300.4230.3370.4241.0390.3532.179
400.4230.3380.4241.0420.3542.186
500.4240.3380.4241.0440.3542.190
600.4240.3390.4241.0450.3542.193
700.4240.3390.4241.0460.3552.194
800.4240.3390.4241.0470.3552.195
900.4240.3390.4241.0470.3552.196
1000.4240.3390.4241.0470.3552.197
1100.4240.3390.4241.0470.3552.197

Note. These impedance values are normalized as K/() and C/(). The calculation parameters are , a0 = kL/2.