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16.7 Determine the magnitude and the location of the active thrust on the smooth vertical wall...
fondation engineering si unit
(8 marks) 4. A vertical retaining wall (shown in the figure below) is 8 m high with horizontal backfill. the properties of the backfill are as shown on the figure. Determine a. the Rankine active force per unit length of the wall before the occurrence of the tensile crack. Yw 9.81 kN/m3. b. The location of the Rankine active force. qs 20 kN/㎡ 5 m 2 Sandy Clay 3 m Sand
Calculate the magnitude and position (above the wall base) of the resultant active thrust denoted Pa. Wall has a smooth vertical back and supports a 12m depth of soil Surface horizontal: uniform surcharge q= 24 kPa, single layer. Water table at the top surface c' =0. Φ'=32 degrees γsat =20 kN/m3
A retaining wall with a smooth vertical back has to retain a backfill of cohesionless soil upto a height f St above ground level. The.coil has a void ratio of 0.83 and the specific gravity of soil solids is 2.68.The water table is located at a depth of 2m below the top of the backfill. The soil above the water table is 20% saturated. The angle of internal friction of the soil above and below water table is 32 and...
A smooth vertical retaining wall, 5 m high, retains a granular backfill whose angle of internal friction is equal to 30o. Assume the unit weight of the backfill to be 18.5 kN/m3. For a backfill slope i = 0, 10, 15, 20, and 25o, determine KAfor each case.
Refer to the 15-m-high wall shown in the figure. Assume that the retaining wall shown in figure can yield sufficiently to develop an active state (i.e., before the tensile crack occurs).(a) Determine the Rankine active force per unit length of the wall.(b) Determine the location of the resultant line of action.Assume, γw = 10 kN/m3
6-12 Use Coulomb's method to determine the magnitude and direction of the total lateral force against the retaining wall of problem 6-5. Assume the friction angle between the wall and the soil to be 2/3*phi. Make one trial only, using an assumed failure surface at an angle of 60 degrees from horizontal. Problem 6-5 is: Use Rankine's method to determine the magnitude and location of the resultant active force against a retaining wall 6 m high. There is a water...
(a) Determine and draw the lateral pressure distribution (active hydrostatic) acting on the smooth wall shown in Figure 2. The water table is at the interface of the soil layers. (8 marks) Soil 1: c'0 kPa, ' 32 y 16 kN/m 2 m 4 m Soil 2: c'-5 kPa, 30° Yet20 kN/m3 Figure 2 (b) In Figure 3 below, the L-shaped area carries a 200 kN/m2 uniform load. Determine the vertical stress increase due to the loading at a depth...
2. The water level behind the wall described in problem 1 rises to an elevation I m below the crest. The submerged unit weight of the sand is 10 kN/m'. If the deformation condition for the active Rankine state is satisfied, what is the resultant pressure that the earth and water exert against the wall? At what height above the base does the resultant of the earth and water pressures act? 1. A wall with a smooth vertical back 3...
Question 3 125-Points Assume that the retaining wall shown in the figure below can yield suffieiently to develop an active state. Determine the Rankine active force per unit length of the wall and the Jocation of the resultant line of action, y-16.5 kN/m de'm 30 2.5 m Ground water table Yeat= 19.3 kN/m '30° c'0 2.5 m (a) Question 4 I 25-Points and ie -hown in the figure below, Assume
Question 3 125-Points Assume that the retaining wall shown in...
b) In a construction site of a congested city, a vertical cut slope will be constructed to maximize the land area. Hence, a 5.0 m height of concrete cantilever wall was selected. If the unit weight of the concrete wall is 24 kN/m and the cross-sectional view of the wall is shown as in Figure Q2(b); (i) Draw the lateral earth pressure diagram using Rankine-Bell theory for active and passive state. Determine the lateral thrust (P) and its line of...