Active Thrust on an Inclined Retaining Wall with Inclined Cohesionless Backfill due to Surcharge Effect

Table 2

Comparison of 𝐾_aq with the results for the angle of wall back of 𝜃=80^˚.

Soil friction angle, 𝜙 (degrees)	Angle of backfill slope, 𝛽 (degrees)	Angle of wall friction, 𝛿 (degrees)	𝑃𝑎 (KN/m)	𝐾aq		% difference
				Present study	Soubra and Macuh [21]
40	16	26.667	0.4758	0.336	0.331	1.51
40	24	26.667	0.561	0.396	0.382	3.66
40	32	26.667	0.723	0.511	0.475	7.57
35	14	23.333	0.549	0.388	0.383	1.35
35	21	23.333	0.638	0.451	0.439	2.73
35	28	23.333	0.8	0.565	0.538	5.00
30	12	20	0.631	0.446	0.44	1.36
30	18	20	0.721	0.509	0.499	2.00
30	24	20	0.88	0.622	0.602	3.32
25	10	16.667	0.724	0.512	0.504	1.58
25	15	16.667	0.813	0.574	0.566	1.41
25	20	16.667	0.964	0.681	0.668	1.90