Skin Friction Behavior of Prebored and Precast Piles in Weathered Rocks
Publication: IFCEE 2024
ABSTRACT
The prebored and precast piles (PPP) are frequently used in urban areas where the noise and vibration are caused by the pile driving. In PPP design, skin friction is the most critical factor affecting the bearing capacity and the settlement behavior. In this study, the behavior and load-distribution of PPP were investigated by pile load tests and an analytical study. A series of pile load tests were performed in the field (14 test piles). In addition, the condition of the shaft along the test pile was investigated through the borehole image profile system (BIPS). The BIPS images actually show that the cement milk injected in the borehole has penetrated into the surrounding ground. Based on this, it is found that the piles show two different load transfer behaviors, such as ductile and brittle shapes, and t−z curves according to two shapes are proposed for a hyperbolic- and sawtooth-shape, respectively. It is also found that the prediction by the proposed load-transfer curve is in good agreement with the general trends observed by in situ measurements.
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REFERENCES
ASTM. (2011). ASTM D2487. Standard practice for classification of soils for engineering purpose (Unified Soil Classification System). West Conshohocken, Pa.
Baguelin, F. (1982). Rules for the structural design of foundations based on the self boring pressuremeter test. In: Proceedings of the Symposium on the Pressuremeter and its Marine Application, IFP, Paris, France, April 1982, pp 347–362.
Castelli, F., Maugeri, M., and Motta, E. (1992). “Analisii non lineare del cedimento di un palosingolo”, Rivista Italiana di Geotechnica. Vol.26. No. 2. pp. 115∼135.
O‘Neill, M. W., and Hassan, K. M. (1994). “Drilled shafts: effects of construction on performance and design criteria”, Proceedings of International Conference on Design and Construction of Deep Foundation. Vol. 1. Orlando. pp. 137~187.
O’Neill, M., Townsend, F., Hassan, K., Buller, A., and Chan, P. (1996). Load transfer for drilled shafts in intermediater geomaterials, Feder al Highways Administration.
Jeong, S., Lee, J., and Lee, C. (2004). “Slip effect of the pile-soil interface on dragload”, Computers and Geotechnics, Vol. 31, pp. 115–126.
Seol, H., Jeong, S., and Cho, S. (2009). “Analytical method for load-transfer characteristics of rocksocketed drilled shafts”, ASCE’s Journal of Geotechnical and Geoenvironmental Engineering, Vol. 135, No. 6, pp.778–789.
Information & Authors
Information
Published In
IFCEE 2024
Pages: 27 - 34
History
Published online: May 3, 2024
ASCE Technical Topics:
- Boring
- Construction engineering
- Construction methods
- Design (by type)
- Drilling
- Driver behavior
- Engineering fundamentals
- Field tests
- Fluid mechanics
- Foundations
- Geotechnical engineering
- Hydrologic engineering
- Infrastructure
- Load factors
- Load tests
- Pile foundations
- Pile tests
- Skin friction
- Structural design
- Tests (by type)
- Traffic engineering
- Transportation engineering
- Water and water resources
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