1. For updated version, please click on
GEOTECHNICAL ENGINEERING Lateral Earth Pressure of Soil (Learning activities) by
Dr. Amizatulhani Abdullah Faculty of Civil Engineering ad Earth Resources

2. Reference
1) Das, B.M., “Principles of Geotechnical Engineering, 5th edition”, Thomson Learning (2002).
Lateral Earth Pressure of Soil by Dr. Amizatulhani Abdullah

3. Angle of internal friction,  
Sand
Unit weight = 
Angle of internal friction = 
Cohesion = 0
Angle of wall friction = 0 H
Figure 1
Assuming that the wall shown in Figure 1 is restrained from yielding, find the magnitude and location of the resultant lateral force per unit width of the wall.
Case
Wall’s height, H (m)
Unit weight,  kN/m3
Angle of internal friction,   1 3
17.6 36 2
4.5 20 42
5.5
17.8 37
Lateral Earth Pressure of Soil by Dr. Amizatulhani Abdullah

4. Angle of internal friction,  
Sand
Unit weight = 
Angle of internal friction = 
Cohesion = 0
Angle of wall friction = 0 H
Figure 2
Assume that the retaining wall shown in Figure 2 is frictionless. For each problem, determine the Rankine active force per unit length of the wall, the variation of active earth pressure with depth, and the location of the resultant.
Case
Wall’s height, H (m)
Unit weight,  kN/m3
Angle of internal friction,   1 4 18 36 2 5 17 40
Lateral Earth Pressure of Soil by Dr. Amizatulhani Abdullah

5. Surcharge, q = 15 kN/m2
Soil 1
d = 15.5 kN/m3
 = 30
c = 0
3 m
Soil 2
sat = 19 kN/m3
 = 36
c = 0
3 m
Figure 3
A retaining wall is shown in Figure 3. Determine the Rankine active force, Pa per unit length of the wall and the location of the resultant.
Lateral Earth Pressure of Soil by Dr. Amizatulhani Abdullah

6. Angle of internal friction,  
Sand
Unit weight = 
Angle of internal friction = 
Cohesion = 0
Angle of wall friction = 0 H
Figure 4
Assume that the retaining wall shown in Figure 4 is frictionless. For each problem, determine the Rankine passive force per unit length of the wall, the variation of active earth pressure with depth, and the location of the resultant.
Case
Wall’s height, H (m)
Unit weight,  kN/m3
Angle of internal friction,   1 5 14 35 2 4 15 30
Lateral Earth Pressure of Soil by Dr. Amizatulhani Abdullah

7. Author Information Dr. Amizatulhani Abdullah Dr
Author Information Dr. Amizatulhani Abdullah Dr. Mohd Yuhyi Mohd Tadza Dr. Youventharan Duraisamy Dr. Muzamir Hasan Ir. Azhani Zukri