Managing Geotechnical Risks in Design–Build Projects (2018) / Chapter Skim
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F-1 Appendix F: Interview and Survey Forms Survey #1 Questionnaire This appendix contains the online-survey used to collect the information from the analysis of current geotechnical management practices conducted in this research. General Information: 1.
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F-2 Geotechnical Design Report (Full subsurface investigation for all structures and geotechnical features) Geotechnical Baseline Report (GBR)
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F-3 15. Within the geotechnical risk management process that is conducted by the agency or required of the designbuilder, please select all that apply whether on a DB typical or a DB project with significant geotechnical issues: (Check all that apply)
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F-4 Uncertainty in the Design Process Inadequate geotechnical investigation Incorrect geotechnical design information, in general Bias and/or variation in design parameters being different than estimated, in general Inaccurate earthwork assumptions– soil or rock cuts or fills Risk in retaining structures assumptions and recommendations - geotechnical aspects Risk in structure foundations assumptions and recommendations (footings, driven piles, drilled shafts, etc...) Risk in ground improvement technique recommendations (wick drains, lightweight fill, vibro-compaction, dynamic compaction, stone columns, grouting, etc...)
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F-5 List of assumptions made regarding geotechnical conditions Limited additional testing as requested by the design-builders Pre-award geotechnical investigation of critical areas by design-builders Geotechnical design values to be used Preliminary designs for foundation features of work Proposed mitigation approaches for known or potential geotechnical risk areas Alternative technical concepts for geotechnical features of work Other, please specify: 26. During the bidding stage of a DB project with significant geotechnical issues, the agency: (check all that apply)
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F-6 30. Please answer the following questions regarding geotechnical aspects of DB contracts: YES NO Do NOT Know Does your agency use the GBR as a contract document?
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F-7 38. How do you rate the final quality of geotechnical work on DB projects compared to DBB projects?
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F-8 Survey #2 Questionnaire The purpose of this second questionnaire is to gauge the impact of geotechnical risk factors on Design-Build (DB) projects.
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F-9 Structured Interview Questionnaire: Geotechnical Risks in Design-Build Projects Research Objectives: 1. Identify, analyze, and understand the current models for successful geotechnical risk management on projects delivered by the Design-Build (DB)
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F-10 12. Agency Project Delivery Experience: PDM #Projects Remarks DBB 1-5; 6-10; 10-20; >20 CMR 1-5; 6-10; 10-20; >20 DB 1-5; 6-10; 10-20; >20 Etc.
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F-11 21. Within the geotechnical risk management process that is conducted by the agency or required of the designbuilder, please select all that apply whether on a typical DB project or one with significant geotechnical issues: 22.
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F-12 25. How much time (days or man-hours)
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F-13 V General Geotechnical Risk Impact 34.
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