Analysis generated using https://www.civils.ai
Retaining Wall Analysis
Calculation generated by anuradha | Unknown
May 13, 2022, 4:18 a.m.
This analysis follows the Net Available passive resistance method developed by Burland,
Potts & Walsh and Eurocode 7. This analysis only considers long term drained conditions &
water at ground level.
Geometry inputs
Wall height (from Base
GL to top of
thickness
base)
Base offset
(inside wall)
Base offset
(outside wall)
Wall
thickness
Surcharge
4.0m
0.5m
1.0m
1.0m
0.0kN/m2
0.75m
Soil profile
Strata name Soil
behaviour
Soil layer
thickness (m)
Weight
(kN/m3)
Friction
angle Φ'(o)
Effective
cohesion c'
(kPa)
Clay
Drained
5
18
30
N/A
Weathered
Rock
Drained
15
18
30
N/A
Rock
Drained
20
20
34
N/A
Analysis summary
Analysis
result
Overall wall
utilisation
Bending
utilisation
Sliding
utilisation
Bearing
utilisation
Fail
115.0%
88.0%
115.0%
68.0%
This report must be checked & verified by a competant Civil Engineer.
Page 1 of 3
Analysis generated using https://www.civils.ai
Detailed analysis
Bending moment analysis
Stabilising forces
Destabilising forces
Base weight
36.0kN
Average active soil force 91.4kN/m
Base lever arm
1.0m
Destabilising lever arm
1.58m
Wall lever arm
1.0m
Destabilising moment
144.4kN/m
Wall weight
48.0m
Stabilising lever arm
1.5m
Stabilising soil weight 54.0kN
Stabilising moment
165.0kNm
Result: Pass
Bending utilisation: 88.0%
Sliding analysis
Stabilising forces
Destabilising forces
Vertical force on base 138.0kN
Coefficient of friction
Avg. active soil force 91.4kN/m
30.0m
Horizontal resistance 79.7m
Result: Fail
Sliding utilisation: 115.0%
This report must be checked & verified by a competant Civil Engineer.
Page 2 of 3
Analysis generated using https://www.civils.ai
Bearing analysis
Moment about heel
140.7kNm/m
Total vertical force
186.3kN/m
Lever arm about heel
0.8m
Avg bearing pressure 93.2kN/m2
Max bearing pressure 149.1kN/m2
Min bearing pressure 37.3kN/m2
Bearing resistance
218.5kN/m2
Result: Pass
Bearing utilisation: 68.0%
This report must be checked & verified by a competant Civil Engineer.
Page 3 of 3