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A platform for research: civil engineering, architecture and urbanism
Design Curves for Time-Dependent Preloading Consolidation with PVDs Considering the Effects of Parabolic Permeability in the Smear Zone and Overlapping Smear Zones
https://orcid.org/http://orcid.org/0000-0002-6730-4311
https://orcid.org/http://orcid.org/0000-0001-6216-9205
The present research provides the design curves for preloading consolidation with prefabricated vertical drains that account for the effects of parabolic horizontal permeability distribution in the smear zone and the overlapping smear zones created by closely spaced drain systems. Additionally, the time-dependent application of surcharge preloading is also taken into consideration. When examining the overlapping of smear zones that result from the small spacing between drains, the results showed that in a triangular pattern, the ratios of the minimum center-to-center spacing between drains to the drain diameter are 1.52 and 10.85 for the smear zone size ratios of 2 and 20, respectively. The same ratios are 1.42 and 10.09 for a square pattern. The paper also outlines the design steps with an example. Ultimately, the implemented design curves are applied to the test embankments of the reclaimed Port of Brisbane to determine the design spacing. The results demonstrate that the predicted drain spacing, derived from the proposed design curves, closely aligns with the drain spacing used in the existing test embankments.
Design Curves for Time-Dependent Preloading Consolidation with PVDs Considering the Effects of Parabolic Permeability in the Smear Zone and Overlapping Smear Zones
https://orcid.org/http://orcid.org/0000-0002-6730-4311
https://orcid.org/http://orcid.org/0000-0001-6216-9205
The present research provides the design curves for preloading consolidation with prefabricated vertical drains that account for the effects of parabolic horizontal permeability distribution in the smear zone and the overlapping smear zones created by closely spaced drain systems. Additionally, the time-dependent application of surcharge preloading is also taken into consideration. When examining the overlapping of smear zones that result from the small spacing between drains, the results showed that in a triangular pattern, the ratios of the minimum center-to-center spacing between drains to the drain diameter are 1.52 and 10.85 for the smear zone size ratios of 2 and 20, respectively. The same ratios are 1.42 and 10.09 for a square pattern. The paper also outlines the design steps with an example. Ultimately, the implemented design curves are applied to the test embankments of the reclaimed Port of Brisbane to determine the design spacing. The results demonstrate that the predicted drain spacing, derived from the proposed design curves, closely aligns with the drain spacing used in the existing test embankments.
Design Curves for Time-Dependent Preloading Consolidation with PVDs Considering the Effects of Parabolic Permeability in the Smear Zone and Overlapping Smear Zones
https://orcid.org/http://orcid.org/0000-0002-6730-4311
https://orcid.org/http://orcid.org/0000-0001-6216-9205
The present research provides the design curves for preloading consolidation with prefabricated vertical drains that account for the effects of parabolic horizontal permeability distribution in the smear zone and the overlapping smear zones created by closely spaced drain systems. Additionally, the time-dependent application of surcharge preloading is also taken into consideration. When examining the overlapping of smear zones that result from the small spacing between drains, the results showed that in a triangular pattern, the ratios of the minimum center-to-center spacing between drains to the drain diameter are 1.52 and 10.85 for the smear zone size ratios of 2 and 20, respectively. The same ratios are 1.42 and 10.09 for a square pattern. The paper also outlines the design steps with an example. Ultimately, the implemented design curves are applied to the test embankments of the reclaimed Port of Brisbane to determine the design spacing. The results demonstrate that the predicted drain spacing, derived from the proposed design curves, closely aligns with the drain spacing used in the existing test embankments.
Design Curves for Time-Dependent Preloading Consolidation with PVDs Considering the Effects of Parabolic Permeability in the Smear Zone and Overlapping Smear Zones
Transp. Infrastruct. Geotech.
Kharsyiemiong, Khrawboklang (author) / Sawant, Vishwas A. (author) / Mittal, Satyendra (author)
2025-03-01
Article (Journal)
Electronic Resource
English
Vertical drain consolidation with overlapping smear zones
| British Library Online Contents | 2007
Vertical drain consolidation with overlapping smear zones
| Online Contents | 2007
Vertical Drain Consolidation with Parabolic Distribution of Permeability in Smear Zone
| British Library Online Contents | 2006
Vertical Drain Consolidation with Parabolic Distribution of Permeability in Smear Zone
| Online Contents | 2006