Settlement Analysis of Piled-Raft Foundation Using Numerical Method

Abstract:

The study gives an example of the sinking pier case at Takeda Interchange of National Highway NO.3 in Taiwan. We got the monitoring data, explored the impact on the consolidation settlement of piled-raft foundation from construction procedure and soil improvement by finite element method「Plaxis8.2」and predicted the degree of post-settlement. Analytic results are shown as follows：Firstly, the soil consolidation settlement model is built by the estimated soil parameters using the data of soil exploration. The calculation value of settlement and the measured value are identical. Secondly, soil improvement only shows effective in initial stage. The pre-consolidation settlement is smaller when building embankment is before pier than when building pier is before embankment.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 1276-1281
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.1276
• Online since: October 2012
• Authors: Wen Tsung Liu, Chun Yi Lin
• Keywords: Consolidation Settlement, Finite Element Method (FEM), Piled-Raft Foundation

References

[1] Taiwan Construction Research Institute, Evaluation Report of bridges damaged in C386 project of National Highway No. 3.（2004）(in Chinese)

[2] National Highway Engineering Bureau of Taiwan Area: Report of monitoring, building and evaluation of the Takeda Interchange of National Highway No. 3, (2009). (in Chinese)

[3] Guiter Engineering Consultants, Boring and testing report of bridges and foundation monitoring in Takeda Interchange for C386 project.（2006）(in Chinese)

[4] China Engineering Consultants, Inc., Testing report of follow-up plan of the second highway from Kauru to Linpan in final design stage, (1993）(in Chinese)

[5] China Engineering Consultants, Inc., Testing report of the second highway from Kauru to Linpan in modified design stage, (1998）(in Chinese)

[6] Michele Calvello, Richard J. Finno submitted to Computers and Geotechnics (2004)