Example Problems
Example
Example Problem 1: Consolidation Time with Prefabricated Vertical Drains
Calculate the drastic difference in consolidation time achieved by installing PVDs.
Given Data:
Checklist
- Total Soft Clay Layer Thickness () = . The layer is bounded by sand at both the top and the bottom (Double Drainage condition).
- Soil's Coefficient of Consolidation () = .
- Required Target Degree of Consolidation () = (which corresponds to a Time Factor ).
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Example
Case Study 2: Ground Modification via Preloading and Prefabricated Vertical Drains (PVDs)
A coastal highway expansion project required constructing high embankments over a deep deposit of soft marine clay. Initial analysis indicated that primary consolidation settlement would be excessive and would take more than 15 years to complete. This timeline was unacceptable for the project schedule.
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