5. The ground conditions at a particular site are as follows: Description of stratum Made ground/topsoil Fine sand Saturated fine clay Saturated stiff clay Pore water pressures are initially hydrostatic below the groundwater level which is at a depth of 3 m. Calculate the vertical effective stress at 6 m in kPa. Take the unit weight of water as 10 kN/m³ Depth below ground level (m) Unit weight (kN/m³) 0-1 17 1-3 18 3-6 20 19 Below 6 А. 119 В. 83 С. 53 D. 17
5. The ground conditions at a particular site are as follows: Description of stratum Made ground/topsoil Fine sand Saturated fine clay Saturated stiff clay Pore water pressures are initially hydrostatic below the groundwater level which is at a depth of 3 m. Calculate the vertical effective stress at 6 m in kPa. Take the unit weight of water as 10 kN/m³ Depth below ground level (m) Unit weight (kN/m³) 0-1 17 1-3 18 3-6 20 19 Below 6 А. 119 В. 83 С. 53 D. 17
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:5. The ground conditions at a particular site are as follows:
Unit weight (kN/m³)
Description of stratum
Made ground/topsoil
Fine sand
Saturated fine clay
Saturated stiff clay
Pore water pressures are initially hydrostatic below the groundwater level which is at a depth of 3 m.
Calculate the vertical effective stress at 6 m in kPa. Take the unit weight of water as 10 kN/m3
Depth below ground level (m)
0-1
17
1-3
18
3-6
20
Below 6
19
В. 83
С. 53
D. 17
А. 119
6. The following results are obtained from a standard compaction test of Soil A:
Mass of compacted soil
| (g)
Moisture Content (%)
The specific gravity of solids is 2.68 and the volume of compaction mold is 1000 is 1000 cm?. At
1920.5
2051.5
2138.5
2147.0
2120.0
2081.5
11.0
12.1
12.8
13.6
14.6
16.3
maximum dry density what is the air content in %?
A. 5.8
В. 4.1
C. 3.2
D. 6.8
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