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Selecting excavation equipment
The UBC has ranges of SPT N values correlated to ranges of shear wave velocities. These could be considered very rough estimates. Check the soil types in Chapter 16. Better yet, see if earthquake hazard maps exist for the site vicinity. If so, they may have representative shear wave data for...- dtrisler_imported
- Post #2
- Forum: Earthwork/grading engineering
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Grading over peat
The project is in the Portland, Oregon area. We don't get freezing conditions. Groundwater is about 8 to 10 feet below grade. The peat is underlain by soft to medium stiff clayey silt. Construction is a few months out, we are in the midst of preparing plans and specs. I'm trying to make...- dtrisler_imported
- Post #4
- Forum: Earthwork/grading engineering
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Grading over peat
I have a project that will be grading over peat. I'm wondering about special earthwork techniques to make sure we don't bog down too much equipment. The site is covered with 2.5 - 3 feet of firm to stiff silt over 10+ feet of peat. The plan is to excavate up to 5-6 feet below grade to...- dtrisler_imported
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- Replies: 5
- Forum: Earthwork/grading engineering
