The Library
Experimental tests on effect of deformed prefabricated vertical drains in dredged soil on consolidation via vacuum preloading
Tools
Cai, Yuanqiang, Qiao, Huanhuan, Wang, Jun, Geng, Xueyu , Wang, Peng and Cai, Ying (2017) Experimental tests on effect of deformed prefabricated vertical drains in dredged soil on consolidation via vacuum preloading. Engineering Geology, 222 . pp. 10-19. doi:10.1016/j.enggeo.2017.03.020 ISSN 0013-7952.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1016/j.enggeo.2017.03.020
Abstract
This study carried out an investigation into the performance of PVDs embedded in dredged soil. A new type of integrated PVDs (NPVDs), in which the filter is adhered to the core by heat melting to form an integrated body, was tested. A variety of deformation patterns were designed for the NPVDs, including straight form, natural form, S-shaped bending deformation, zigzag kinking deformation, and Z-shaped folding deformation. Vacuum-preloading tests rather than the conventional discharge capacity test were carried out to examine the effectiveness of vacuum preloading. For comparison, tests on conventional PVDs (CPVDs) in natural form were also conducted under the same test conditions. It is found that the distribution of vacuum pressure along the drain length was as a bilinear relationship after taking into account the deformation of PVDs. The Z-shaped deformation of PVDs imposed significant detrimental effects on the effectiveness of vacuum preloading. Nevertheless, the effects of the S-shaped deformation of PVDs on the effectiveness of vacuum preloading were not prominent. The deformation of the natural-from NPVDs was close to the S-shaped form; while the deformation of the natural-from CPVDs was close to the Z-shaped form. Therefore, the NPVDs possess superior performance than the CPVDs in improving dredged soil.
Item Type: | Journal Article | ||||||||
---|---|---|---|---|---|---|---|---|---|
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Journal or Publication Title: | Engineering Geology | ||||||||
Publisher: | Elsevier BV | ||||||||
ISSN: | 0013-7952 | ||||||||
Official Date: | 17 May 2017 | ||||||||
Dates: |
|
||||||||
Volume: | 222 | ||||||||
Page Range: | pp. 10-19 | ||||||||
DOI: | 10.1016/j.enggeo.2017.03.020 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |