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Quantitative assessment for piles productivity factors
Faculty
Science
Year:
2004
Type of Publication:
Article
Pages:
405-414
Authors:
Zayed, TM, Halpin, DW
DOI:
10.1061/(ASCE)0733-9364(2004)130:3(405)
Journal:
JOURNAL OF CONSTRUCTION ENGINEERING AND MANAGEMENT-ASCE ASCE-AMER SOC CIVIL ENGINEERS
Volume:
130
Research Area:
Construction \& Building Technology; Engineering
ISSN
ISI:000221651200013
Keywords :
pile foundations, construction, productivity, fuzzy sets
Abstract:
The management process of any construction operation usually can be defined as a chain of decisions. A decision-maker can bid, plan, and organize the bored pile projects based on an accurate estimate of productivity. To estimate productivity efficiently, piling process qualitative and quantitative factors have to be considered. This paper focuses on assessing the effect of subjective factors on bored pile construction productivity. A productivity index (PI) model is developed to represent this subjective effect in refining productivity assessment using simulation and deterministic techniques. The analytic hierarchy process and fuzzy logic are used to develop the proposed PI model that relies on the actual performance of 10 main piling process subjective factors. Subjective data were collected from bored pile (drilled shaft) contractors considering these subjective factors. The developed PI model implementation to piling process resulted in PI=0.7. This value has been validated using simulation model outputs.
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