Affiliation:
1. School of Civil and Structural Engineering, Nanyang Technological University Singapore
2. Geotechnical Research Institute, Tianjin University China
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 threefold after treatment. The procedures used for soil improvement, the field instrumentation programme, and the field monitoring data are described and discussed.
Subject
Earth and Planetary Sciences (miscellaneous),Geotechnical Engineering and Engineering Geology
Reference12 articles.
1. JTJ. Chinese Code for Soil Foundation of Port Engineering, 1998, Ministry of Construction, China, 250–98.
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