Experimental and Numerical Studies on the Inflatable Recyclable Anchor in the Tube Piece Type Based on the Soil-Anchor Interaction Mechanism

Table 1

Summary of the field experiments.

Test no.	Inflation pressure (kPa)	Embedment depth H (mm)	Steel disc thickness t (mm)	Time lapse between anchor inflation and uplift T (min)	Peak uplift force Pult (kN)	The corresponding displacement at Pult s (mm)	Residual uplift force R (kN)
1	100	1500	2	5	4.12	6.02	3.55
2	200	1500	2	5	6.01	6.96	5.55
3	300	1500	2	5	8.42	10.53	7.26
4	400	1500	2	5	11.42	13.23	9.98
5	200	1500	1	5	5.17	8.96	4.45
6	200	1500	5	5	6.52	11.51	5.67
7	200	1500	5	5	6.94	9.32	5.85
8	300	1500	1	5	6.92	10.68	5.94
9	300	1500	5	5	8.64	14.44	7.39
10	300	1500	5	5	9.22	12.87	7.84
11	300	2000	2	5	9.29	10.78	8.15
12	300	2500	2	5	10.54	11.06	9.06
13	300	1500	2	120	7.73	12.86	6.85
14	300	1500	2	480	8.88	11.36	7.40
15	300	1500	2	1440	9.94	11.53	8.86

5 denotes the steel disc (t = 5 mm) surface roughness was increased by adding mortar.