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New approach of vacuum preloading with booster prefabricated vertical drains (PVDs) to improve deep marine clay strata
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Cai, Yuanqiang, Xie, Zhiwei, Wang, Jun, Wang, Peng and Geng, Xueyu (2018) New approach of vacuum preloading with booster prefabricated vertical drains (PVDs) to improve deep marine clay strata. Canadian Geotechnical Journal, 55 (10). pp. 1359-1371. doi:10.1139/cgj-2017-0412 ISSN 1208-6010.
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Official URL: http://dx.doi.org/10.1139/cgj-2017-0412
Abstract
This paper presented a new approach for ground improvement of deep marine clay in which the conventional booster tube in the current air booster vacuum preloading technology was replaced by a booster prefabricated vertical drain (PVD). In comparison to the ordinary PVD, the booster PVD could provide inflow channels for the compressed air when the booster pump was in operation. To examine the performance of this new air booster vacuum preloading technology, in situ field tests were conducted at Oufei sluice project in Wenzhou, China, where the thickness of the soft soil layers (i.e., marine clay) was more than 20 m. An extensive monitoring system was implemented to measure the vacuum pressure, pore-water pressure, settlement, and lateral displacement at this reclamation site. With the collected field monitoring data, a comprehensive data analysis was carried out to evaluate the extent of ground improvement. The study results depicted that this new air booster vacuum preloading technology was more effective for the ground improvement of the deep marine clay layers, in comparison to the conventional vacuum preloading technology.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
SWORD Depositor: | Library Publications Router | ||||||||
Journal or Publication Title: | Canadian Geotechnical Journal | ||||||||
Publisher: | Canadian Science Publishing | ||||||||
ISSN: | 1208-6010 | ||||||||
Official Date: | October 2018 | ||||||||
Dates: |
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Volume: | 55 | ||||||||
Number: | 10 | ||||||||
Page Range: | pp. 1359-1371 | ||||||||
DOI: | 10.1139/cgj-2017-0412 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
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