Large-Scale Reinforced Clay Walls Backfilled with Clay at Cheng Kung University - Reinforced Soil Engineering: Advances in Research and Practice - page 192

Figure 7 Failure surfaces for L-wall predicted using modified Bishop's method.

Table 4 Results of Slope Stability Analyses for R-Wall Using Modified Bishop's
Method Under Various Conditions

No. (strength
parameters) A (r u ¼ 0, F T ¼ 1.0) B (r u ¼ 0, F T ¼ 3.3) C (r u ¼ 0.1, F T ¼ 1.0)

1(c ¼ 43
kN/m 2 ,
f ¼ 33 8 )

3.80
*( 2 0.75, 4.975, 5.014)

3.38
*( 2 2.375, 5.35, 5.843)

3.66
*( 2 0.75, 4.975, 5.014)

2(c ¼ 26
kN/m 2 ,
f ¼ 35.8 8 )

2.94
*( 2 0.625, 4.6, 4.619)

2.50
*( 2 3.25, 4.975, 5.906)

2.79
*( 2 0.625, 4.6, 4.619)

3(c ¼ 0
kN//m 2 ,
f ¼ 33 8 )

1.17
*( 2 2.375, 5.35, 5.843)

0.78
*( 2 4.75, 3.475, 5.877)

1.04
*( 2 2.375, 5.35, 5.843)

4(c ¼ 0
kN/m 2 ,
f ¼ 35.8 8 )

1.30
*( 2 2.375, 5.35, 5.843)

0.87
*( 2 4.75, 3.475, 5.877)

1.15
*( 2 2.375, 5.35, 5.843)

For all cases, q ¼ 9.8 kN/m 2 ,T ult ¼ 17.7 kN/m, g ¼ g sat ¼ 18.1 kN/m 3 .
*(X,Y,R): X, Y are the x- and y-coordinates (in meters) for the center of circle, R is the radius (in
meter) of the circle, and the origin (0,0) is located at the toe of the wall.