Abstract
This paper presents a case study on the application of the vacuum preloading method for a soil improvement project in Tianjin, China. The site area was 50 000 m2, and the soft clay treated was about 20 m thick, including a very soft muddy clay layer 4-5 m thick, formed from dredged slurry. The water contents of the clays were higher than or as high as the liquid limits. A vacuum load of 80 kPa was applied for 4 months. The ground settled nearly 1 m, and the average degree of consolidation was greater than 80%. The undrained shear strength of the soil increased two- to three-fold after treatment. The procedures used for soil improvement, the field instrumentation programme, and the field monitoring data are described and discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 625-632 |
| Number of pages | 8 |
| Journal | Geotechnique |
| Volume | 50 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2000 |
| Externally published | Yes |
ASJC Scopus Subject Areas
- Geotechnical Engineering and Engineering Geology
- Earth and Planetary Sciences (miscellaneous)
Keywords
- Case history
- Consolidation
- Field intstrumentation
- Ground improvement
- Soil stabilization