Location
Arlington, Virginia
Date
14 Aug 2008, 7:00 pm - 8:30 pm
Abstract
Since the early 1990’s till early 2000s, the Changi East Reclamation Project in the Republic of Singapore involved the filling of approximately 200 million cubic meters of sand for the reclamation of a total land area of about 2500 hectares. The land reclamation works were carried out in 5 phases. The edges of the newly reclaimed land in the project were either retained by vertical retaining structure or coastal shore protection rock bund with suitable slopes and berms. Land reclamation was carried out using fill materials derived from dredging granular material from the seabed at the borrow source. Prefabricated vertical drains with surcharge were used extensively in the project to accelerate the consolidation process. In addition, deep sand compaction of the hydraulically placed sandfill was carried out by various deep compaction methods. Geotechnical instruments were required to monitor the settlement and pore pressure dissipation of the improved soft soil. During the implementation of the 5 phases of land reclamation and soil improvement projects, several thousand geotechnical instruments of various types were installed. In-situ testing of the marine clay was carried out prior to reclamation a well as after soil improvement. In-situ testing of the marine clay was carried out by means of field vane shear, self boring pressuremeter, cone penetration test and dilatometer tests. This paper provides a case study into the land reclamation, ground improvement, field instrumentation, in-situ testing and deep sand compaction works that were carried out in the Changi East Reclamation Project.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
6th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2008 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Arulrajah, A.; Bo, M. W.; and Nikraz, H., "Case Study of the Changi East Land Reclamation Project, Singapore" (2008). International Conference on Case Histories in Geotechnical Engineering. 2.
https://scholarsmine.mst.edu/icchge/6icchge/session09/2
Case Study of the Changi East Land Reclamation Project, Singapore
Arlington, Virginia
Since the early 1990’s till early 2000s, the Changi East Reclamation Project in the Republic of Singapore involved the filling of approximately 200 million cubic meters of sand for the reclamation of a total land area of about 2500 hectares. The land reclamation works were carried out in 5 phases. The edges of the newly reclaimed land in the project were either retained by vertical retaining structure or coastal shore protection rock bund with suitable slopes and berms. Land reclamation was carried out using fill materials derived from dredging granular material from the seabed at the borrow source. Prefabricated vertical drains with surcharge were used extensively in the project to accelerate the consolidation process. In addition, deep sand compaction of the hydraulically placed sandfill was carried out by various deep compaction methods. Geotechnical instruments were required to monitor the settlement and pore pressure dissipation of the improved soft soil. During the implementation of the 5 phases of land reclamation and soil improvement projects, several thousand geotechnical instruments of various types were installed. In-situ testing of the marine clay was carried out prior to reclamation a well as after soil improvement. In-situ testing of the marine clay was carried out by means of field vane shear, self boring pressuremeter, cone penetration test and dilatometer tests. This paper provides a case study into the land reclamation, ground improvement, field instrumentation, in-situ testing and deep sand compaction works that were carried out in the Changi East Reclamation Project.
