Concept explainers
Find the consolidation settlement of the group.
Answer to Problem 18.25P
The consolidation settlement of the group is
Explanation of Solution
Given information:
The total load
The length
The length
The length
The unit weight
The saturated unit weight
The initial void ratio
The coefficient of consolidation
The saturated unit weight
The initial void ratio
The coefficient of consolidation
The saturated unit weight
The initial void ratio
The coefficient of consolidation
The saturated unit weight
The initial void ratio
The coefficient of consolidation
Calculation:
Show the pressure diagram as in Figure 1.
Determine the total length L of pile using the formula.
Substitute 3 m for
The load starts transmitting to the soil at the pile depth of
Determine the depth at which the load on the group pile
Here, L is the depth of normally consolidated clay layer 1.
Substitute 10 m for L.
Thus, the settlement starts in NCC layer 1.
Determine the stress
Here,
Take the unit weight of water as
Substitute
Determine the stress
Here,
Substitute
Determine the stress
Here,
Substitute
Calculate the stress
Here,
Substitute 2,500 kN for
Calculate the stress
Substitute 2,500 kN for
Calculate the stress
Substitute 2,500 kN for
Determine the value of
Substitute
Determine the value of
Substitute
Determine the value of
Substitute
Determine the consolidated settlement
Here,
Substitute 0.30 for
Determine the consolidated settlement
Here,
Substitute 0.35 for
Determine the consolidated settlement
Here,
Substitute 0.26 for
Determine the total
Substitute 0.186 m for
Therefore, the consolidated settlement of the group pile is
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Chapter 18 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
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