TY - JOUR
T1 - Reliability of estimation pile load capacity methods
AU - Lastiasih, Yudhi
AU - Sidi, Indra Djati
PY - 2014
Y1 - 2014
N2 - None of numerous previous methods for predicting pile capacity is known how accurate any of them are when compared with the actual ultimate capacity of piles tested to failure. The author's of the present paper have conducted such an analysis, based on 130 data sets of field loading tests. Out of these 130 data sets, only 44 could be analysed, of which 15 were conducted until the piles actually reached failure. The pile prediction methods used were: Brinch Hansen's method (1963), Chin's method (1970), Decourt's Extrapolation Method (1999), Mazurkiewicz's method (1972), Van der Veen's method (1953), and the Quadratic Hyperbolic Method proposed by Lastiasih et al. (2012). It was obtained that all the above methods were sufficiently reliable when applied to data from pile loading tests that loaded to reach failure. However, when applied to data from pile loading tests that loaded without reaching failure, the methods that yielded lower values for correction factor N are more recommended. Finally, the empirical method of Reese and O'Neill (1988) was found to be reliable enough to be used to estimate the Qult of a pile foundation based on soil data only.
AB - None of numerous previous methods for predicting pile capacity is known how accurate any of them are when compared with the actual ultimate capacity of piles tested to failure. The author's of the present paper have conducted such an analysis, based on 130 data sets of field loading tests. Out of these 130 data sets, only 44 could be analysed, of which 15 were conducted until the piles actually reached failure. The pile prediction methods used were: Brinch Hansen's method (1963), Chin's method (1970), Decourt's Extrapolation Method (1999), Mazurkiewicz's method (1972), Van der Veen's method (1953), and the Quadratic Hyperbolic Method proposed by Lastiasih et al. (2012). It was obtained that all the above methods were sufficiently reliable when applied to data from pile loading tests that loaded to reach failure. However, when applied to data from pile loading tests that loaded without reaching failure, the methods that yielded lower values for correction factor N are more recommended. Finally, the empirical method of Reese and O'Neill (1988) was found to be reliable enough to be used to estimate the Qult of a pile foundation based on soil data only.
KW - COV
KW - Load settlement curve
KW - Pile loading test
KW - Quadratic hyperbolic
KW - Standard deviation
UR - http://www.scopus.com/inward/record.url?scp=84905217973&partnerID=8YFLogxK
U2 - 10.5614/j.eng.technol.sci.2014.46.1.1
DO - 10.5614/j.eng.technol.sci.2014.46.1.1
M3 - Article
AN - SCOPUS:84905217973
SN - 2337-5779
VL - 46 B
SP - 1
EP - 16
JO - Journal of Engineering and Technological Sciences
JF - Journal of Engineering and Technological Sciences
IS - 1
ER -