The Application of Dynamic Compaction on Marjan Island

Marjan Island is 2.7 million m2 of development located 27 km southwest of Ras Al Khaimah in the United Arab Emirates. This project has been reclaimed from the Persian Gulf by tipping sand into the sea. Geotechnical investigations indicated that the upper 7 m of ground was composed of very loose to m...

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Main Authors: Hamidi, Babak, Nikraz, Hamid, Varaksin, Serge
Other Authors: G Narsilio
Format: Conference Paper
Published: The Australian Geomechanical Society and New Zealand Geotechnical Society 2012
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/29184
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author Hamidi, Babak
Nikraz, Hamid
Varaksin, Serge
author2 G Narsilio
author_facet G Narsilio
Hamidi, Babak
Nikraz, Hamid
Varaksin, Serge
author_sort Hamidi, Babak
building Curtin Institutional Repository
collection Online Access
description Marjan Island is 2.7 million m2 of development located 27 km southwest of Ras Al Khaimah in the United Arab Emirates. This project has been reclaimed from the Persian Gulf by tipping sand into the sea. Geotechnical investigations indicated that the upper 7 m of ground was composed of very loose to medium dense silty sand interbedded with layers of boulders at different depths. SPT blow counts were recorded to be as low as 4 and Menard Pressuremeter Test (PMT) limit pressure was as low as 70 kPa. Fines content was from 13 to 30%. Preliminary calculations suggested that the in-situ ground conditions could not satisfy the island’s main road’s settlement criteria and that ground improvement was required. Thus, 198,000 m2 of the reclamation was treatment by Dynamic Compaction. Pounders weighing up to 20 tons were dropped from 20 m to compact the loose soil. 32 PMT were carried out after ground improvement to verify the achievements. These tests were able to demonstrate that acceptance criteria was readily achieved and that on average the soil’s modulus of deformation increased by more than 400%.
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spelling curtin-20.500.11937-291842023-02-07T08:01:18Z The Application of Dynamic Compaction on Marjan Island Hamidi, Babak Nikraz, Hamid Varaksin, Serge G Narsilio A Arulrajah J Kodikara dynamic compaction soil improvement ground improvement Marjan Island is 2.7 million m2 of development located 27 km southwest of Ras Al Khaimah in the United Arab Emirates. This project has been reclaimed from the Persian Gulf by tipping sand into the sea. Geotechnical investigations indicated that the upper 7 m of ground was composed of very loose to medium dense silty sand interbedded with layers of boulders at different depths. SPT blow counts were recorded to be as low as 4 and Menard Pressuremeter Test (PMT) limit pressure was as low as 70 kPa. Fines content was from 13 to 30%. Preliminary calculations suggested that the in-situ ground conditions could not satisfy the island’s main road’s settlement criteria and that ground improvement was required. Thus, 198,000 m2 of the reclamation was treatment by Dynamic Compaction. Pounders weighing up to 20 tons were dropped from 20 m to compact the loose soil. 32 PMT were carried out after ground improvement to verify the achievements. These tests were able to demonstrate that acceptance criteria was readily achieved and that on average the soil’s modulus of deformation increased by more than 400%. 2012 Conference Paper http://hdl.handle.net/20.500.11937/29184 The Australian Geomechanical Society and New Zealand Geotechnical Society fulltext
spellingShingle dynamic compaction
soil improvement
ground improvement
Hamidi, Babak
Nikraz, Hamid
Varaksin, Serge
The Application of Dynamic Compaction on Marjan Island
title The Application of Dynamic Compaction on Marjan Island
title_full The Application of Dynamic Compaction on Marjan Island
title_fullStr The Application of Dynamic Compaction on Marjan Island
title_full_unstemmed The Application of Dynamic Compaction on Marjan Island
title_short The Application of Dynamic Compaction on Marjan Island
title_sort application of dynamic compaction on marjan island
topic dynamic compaction
soil improvement
ground improvement
url http://hdl.handle.net/20.500.11937/29184