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Load-settlement behaviour of bored piles with loose sediments at the pile tip: Experimental, numerical and analytical study.
- Source :
-
Computers & Geotechnics . Oct2018, Vol. 102, p92-101. 10p. - Publication Year :
- 2018
-
Abstract
- Abstract An elevated raft technique is proposed for cast-in-place bored piles, where loose sediments and excavation debris at the pile tip can be compressed by the applied load from the superstructure. The axial load-settlement (i.e., P - S curve) behaviour of bored piles with debris is evaluated by a series of model-scale laboratory experiments. Numerical simulation is conducted using a two-dimensional axisymmetric model for comparison. An analytical model is then proposed to capture the whole P - S curve in three segments: (a) the contribution of skin friction, (b) increased settlement associated with the compression of debris, and (c) the development of tip resistance. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0266352X
- Volume :
- 102
- Database :
- Academic Search Index
- Journal :
- Computers & Geotechnics
- Publication Type :
- Academic Journal
- Accession number :
- 131632185
- Full Text :
- https://doi.org/10.1016/j.compgeo.2018.06.010