Study of pile integrity and dynamic analyzer system for bearing capacity measurement

Lee , Yee Loon and Koh , Heng Boon (2011) Study of pile integrity and dynamic analyzer system for bearing capacity measurement. Project Report. Universiti Tun Hussein Onn Malaysia. (Unpublished)

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Abstract

Construction on peat is very challenging especially where the peat is of varying depth with low shear strength and bearing capacity. There is a need to provide a simple and reliabIe method to determine the in-situ undrained shear strength and bearing capacity. The idea of an instrumented composite pile for foundation on peat is derived from a novel combination of structural and geotechnical concept. The use of lightweight and high strength material for the foundation is to resolve the construction problem on peat. The instrumented steel composite pile is designed by ons side ring the controlled density characteristics of the foamed concrete having a density which matches the density of peat. Foamed concrete of density 1300 kg/m3 was cast into the profiled steel casing of strength 275~/mm'. The site test was conducted at Parit Nipah, Batu Pahat. The design of instrumented pile is based on the use of a fill size pile to determine frictional and bearing capacity. The comparison with the value of undrained shear strength (Su) obtained from vane shear field test produced results which forms the basis of performance evaluation. Field test results indicated that the bearing capacity of peat could range between 5 to 12 times Su. Further tests on greater depth of peat under static and dynamic loading conditions are proposed on other test sites to verify the accuracy and reliability of this novel method.

Item Type:Monograph (Project Report)
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA715-787 Earthwork. Foundations
ID Code:1779
Deposited By:Normajihan Abd. Rahman
Deposited On:28 Sep 2011 13:23
Last Modified:28 Sep 2011 13:23

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