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Process versus data oriented techniques in pile construction productivity assessment
Faculty
Not Specified
Year:
2004
Type of Publication:
Article
Pages:
490-499
Authors:
Zayed, TM, Halpin, DW
DOI:
10.1061/(ASCE)0733-9364(2004)130:4(490)
Journal:
JOURNAL OF CONSTRUCTION ENGINEERING AND MANAGEMENT-ASCE ASCE-AMER SOC CIVIL ENGINEERS
Volume:
130
Research Area:
Construction \& Building Technology; Engineering
ISSN
ISI:000223001000003
Keywords :
Process versus data oriented techniques , pile
Abstract:
A large number of problems faces the installation of pile (drilled shaft) foundations: unseen subsurface obstacles, lack of contractor experience, site planning, etc. These problems make it difficult for the estimator to assess the pile construction productivity and cost. Several techniques might be good candidates for this assessment problem. A fundamental question arises: which technique is the most appropriate to solve this assessment problem? This study focuses on answering this fundamental research question. Data were collected through designed questionnaires, site interviews, and telephone calls to experts in different construction companies. Four different techniques were listed as candidates to solve this problem: deterministic, simulation, multiple regression, and artificial neural network (ANN). They were categorized into two groups: process oriented techniques, deterministic and simulation; and data oriented techniques (DOT), regression and ANN. All techniques were used to assess productivity and cost of pile construction. Their results were compared to determine the closest assessment to real world practice. Research results show that the DOT techniques were the most appropriate whereas they had the lowest deviation from real world practice.
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