geotechnical engineering practice- klf
TRANSCRIPT
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Geotechnical Engineering Practice: Changing the Paradigm
K.L. Fishman, Ph.D., P.E.Principal
McMahon & Mann Consulting Engineers, P.C.Buffalo, NY
Presented at the Workshop on Nonlinear Modeling of Geotechnical Problems: From
Theory to PracticeNovember 3 & 4, 2005
Johns Hopkins University
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McMahon & MannConsulting Engineers, P.C.
Promoting the Use of Advanced Numerical Methods
• Identify Target Audience• Demonstrate the Benefits• Address Data Requirements• Foster Competition in the Market Place• Don’t Oversell• Identify and Discuss Application Failures
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McMahon & MannConsulting Engineers, P.C.
Owner
Architect or
Construction Manager
Project Organization – Type 1
Geotechnical Engineer
Structural Engineer
GeneralCivil
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McMahon & MannConsulting Engineers, P.C.
Project Organization – Type 2
Owner Regulatory Agency
Geotechnical Engineer
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McMahon & MannConsulting Engineers, P.C.
Promoting the Use of Advanced Numerical Methods
• Identify Target Audience• Demonstrate the Benefits• Address Data Requirements• Foster Competition in the Market Place• Don’t Oversell• Identify and Discuss Application Failures
![Page 6: Geotechnical Engineering Practice- KLF](https://reader036.vdocuments.us/reader036/viewer/2022082502/552bc04a550346910f8b45be/html5/thumbnails/6.jpg)
McMahon & MannConsulting Engineers, P.C.
Seismic Design Requirements
Incentive• Adoption of IBC• Advanced Analysis
is Cost Effective
Applications•Site specific response•Soil-Structure Interaction•Response of Earth Structure
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McMahon & MannConsulting Engineers, P.C.
![Page 8: Geotechnical Engineering Practice- KLF](https://reader036.vdocuments.us/reader036/viewer/2022082502/552bc04a550346910f8b45be/html5/thumbnails/8.jpg)
McMahon & MannConsulting Engineers, P.C.
![Page 9: Geotechnical Engineering Practice- KLF](https://reader036.vdocuments.us/reader036/viewer/2022082502/552bc04a550346910f8b45be/html5/thumbnails/9.jpg)
McMahon & MannConsulting Engineers, P.C.
Promoting the Use of Advanced Numerical Methods
• Identify Target Audience• Demonstrate the Benefits• Address Data Requirements• Foster Competition in the Market Place• Don’t Oversell• Identify and Discuss Application Failures
![Page 10: Geotechnical Engineering Practice- KLF](https://reader036.vdocuments.us/reader036/viewer/2022082502/552bc04a550346910f8b45be/html5/thumbnails/10.jpg)
McMahon & MannConsulting Engineers, P.C.
Address Data Requirement
• Keep number of required parameters to minimum
• Provide default values as appropriate• Correlate parameters to index properties• Utilize readily available test equipment• Develop regional databases of material
properties
![Page 11: Geotechnical Engineering Practice- KLF](https://reader036.vdocuments.us/reader036/viewer/2022082502/552bc04a550346910f8b45be/html5/thumbnails/11.jpg)
McMahon & MannConsulting Engineers, P.C.
Promoting the Use of Advanced Numerical Methods
• Identify Target Audience• Demonstrate the Benefits• Address Data Requirements• Foster Competition in the Market Place• Don’t Oversell• Identify and Discuss Application Failures
![Page 12: Geotechnical Engineering Practice- KLF](https://reader036.vdocuments.us/reader036/viewer/2022082502/552bc04a550346910f8b45be/html5/thumbnails/12.jpg)
McMahon & MannConsulting Engineers, P.C.
Promoting the Use of Advanced Numerical Methods
• Identify Target Audience• Demonstrate the Benefits• Address Data Requirements• Foster Competition in the Market Place• Don’t Oversell• Identify and Discuss Application Failures
![Page 13: Geotechnical Engineering Practice- KLF](https://reader036.vdocuments.us/reader036/viewer/2022082502/552bc04a550346910f8b45be/html5/thumbnails/13.jpg)
McMahon & MannConsulting Engineers, P.C.
UTILITY OF RESULTS
• Verify assumptions that form the basis of simple methods
• Identify important features of the response• Valuable results are those that lead to
increased confidence in design• Simple methods “simply are not simple”!
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McMahon & MannConsulting Engineers, P.C.
Promoting the Use of Advanced Numerical Methods
• Identify Target Audience• Demonstrate the Benefits• Address Data Requirements• Foster Competition in the Market Place• Don’t Oversell• Identify and Discuss Application Failures
![Page 15: Geotechnical Engineering Practice- KLF](https://reader036.vdocuments.us/reader036/viewer/2022082502/552bc04a550346910f8b45be/html5/thumbnails/15.jpg)
McMahon & MannConsulting Engineers, P.C.
CONCLUSIONS
• Applications to small & medium sized projects– Region-wide problems– Code requirements– Approval process involving regulator
• Geotechnical engineers must contribute to scope from the beginning of a project
• Case Studies need to demonstrate improvements in design and associated cost savings