Estimating the Probability Distribution of Construction Project Completion Times Based on Drum-Buffer-Rope Theory

Autor: Kun Zhang, Le Shen, Xun Liu
Rok vydání: 2021
Předmět:
Technology
construction schedule
QH301-705.5
Computer science
QC1-999
0211 other engineering and technologies
Scheduling (production processes)
02 engineering and technology
Bottleneck
021105 building & construction
0502 economics and business
theory of constraint (TOC)
General Materials Science
Biology (General)
Duration (project management)
QD1-999
Instrumentation
Reliability (statistics)
Fluid Flow and Transfer Processes
drum-buffer-rope (DBR)
Physics
Process Chemistry and Technology
05 social sciences
General Engineering
Schedule (project management)
Engineering (General). Civil engineering (General)
Computer Science Applications
Reliability engineering
Chemistry
Program evaluation and review technique
Theory of constraints
PERT
construction project
TA1-2040
050203 business & management
Rope
Zdroj: Applied Sciences, Vol 11, Iss 7150, p 7150 (2021)
Applied Sciences
Volume 11
Issue 15
ISSN: 2076-3417
DOI: 10.3390/app11157150
Popis: Various factors affecting the construction progress are regarded as bottlenecks giving rise to the project duration overrun. The contractor should combine the project schedule with the plan in order to reduce the uncertainty of the project activities. The present research describes the method derived from the theory of constraints (TOC) attempts to enhance the relationship among activities, to revise and further reduce the uncertainty of construction activities to improve the reliability of project progress. The elements of drum, buffer and rope (DBR) in TOC are added to PERT network schedule
through the identification of schedule in the bottleneck process, the implementation plan of the bottleneck is obtained. By measuring buffer time and calculating network schedule buffer time as well as feeding time, the relationship among activities and uncertainty of duration are also improved. To illustrate the impact of DBR applications on improving project schedule reliability, a case of hydropower station as an example is illustrated to show enhanced reliability of scheduling. As compared to program evaluation and review technique network (PERT) simulation, the simulation results showed that the uncertainty of construction progress could be reduced if the DBR are well cooperated mutually.
Databáze: OpenAIRE
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