Chapter 4
Monte Carlo Simulation
Publication: User's Manual for GeogridBridge 3.0: A Guide to the Load Displacement Compatibility Method (LDC) for Design of Column-Supported Embankments
Abstract
GGB3 allows the analyst to apply a Monte Carlo Simulation (MCS) to consider the uncertainty of input parameter values. The spreadsheet has the capability of considering uncertainty within each of the soil profile parameters. If the user does not wish to run an MCS, the number of runs in batch N should be set to 1. Usually, a reliable MCS in GGB3 requires a minimum of 1,000 trials. GGB3 can run a MCS with a maximum of 10,000 trials. GGB3 defines the probability of serviceability failure as the percentage of MCS iterations that result in an output value that exceeds a prescribed maximum acceptable value. GGB3 considers parameter uncertainty using either a normal or log-normal distribution for the nondeterministic parameter values. The spreadsheet considers the parameter values input for a deterministic analysis to be the average parameter values for the probabilistic analysis.
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References
Duncan, J. M. 2000. “Factors of safety and reliability in geotechnical engineering.” J. Geotech. Geoenviron. Eng. 126 (4): 307–316.
Harr, M. E. 1984. Reliability-based design in civil engineering. 1984 Henry M. Shaw Lecture. Raleigh, NC: North Carolina State University, Dept. of Civil Engineering.
Kulhawy, F. H. 1992. On the evaluation of soil properties, 95–115. Geotechnical Special Publication 31. Reston, VA: ASCE.
Lacasse, S., and F. Nadim. 1996. “Uncertainties in characterizing soil properties.” In Proc., Uncertainty, 49–75. Reston, VA: ASCE.
McGuire, M. P., J. A. Sloan, and D. R. VandenBerge. 2018. “Application of reliability analyses for serviceability design of column-supported embankments.” In Proc., Int. Foundation Congress and Equipment Expo, 352–361. Reston, VA: ASCE.
Sleep, M., and J. M. Duncan. 2014. Manual for geotechnical engineering reliability calculations. 2nd ed. CGPR #76. Blacksburg, VA: Virginia Tech Center for Geotechnical Practice and Research.
Information & Authors
Information
Published In
User's Manual for GeogridBridge 3.0: A Guide to the Load Displacement Compatibility Method (LDC) for Design of Column-Supported Embankments
Pages: 21 - 26
ISBN (Online): 978-0-7844-8564-4
Copyright
© 2024 by the American Society of Civil Engineers.
History
Published online: Sep 6, 2024
ASCE Technical Topics:
- Architectural engineering
- Building management
- Computer programming
- Computer software
- Computing in civil engineering
- Continuum mechanics
- Dynamics (solid mechanics)
- Engineering fundamentals
- Engineering mechanics
- Geomechanics
- Geotechnical engineering
- Mathematics
- Methodology (by type)
- Monte Carlo method
- Motion (dynamics)
- Numerical methods
- Parameters (statistics)
- Probability
- Serviceability
- Soil analysis
- Soil mechanics
- Soil properties
- Solid mechanics
- Spreadsheets
- Statistics
- Uncertainty principles
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