Site Planning Flashcards
1
Q
Soil boring are usually taken at intervals of
A
50 foot intervals to depth of at least 20 ft below eventuall foundations or to bedrock
2
Q
perhaps the most important subsurface variable of site analysis is…
A
the absence of water, moisture content of the soil, it sinternal and surface drainage, and the location of the water table
3
Q
what are the effects of a low water table?
A
- low water supply
- difficult for on site vegetation
4
Q
what are the effects of a high water table?
A
- difficult excavation
- flooded basements
- flodded utilities
- unstable foundations
5
Q
a high water table is indicated by what on site ibservations?
A
- levels in existing wells and digging
- presence of water loving plants, such as wilows, alders, and reeds
6
Q
The danger flags that call for a detailed investigation of ciritcal subsurface problems include:
A
- a high fluctuating water table
- the presence of peat or other organic soils
- soft plastic clay
- loose silt
- fine water-bearing sand
- rock close to the sruface
- new, unconcsolidated fill
- land previously used as a dump
- any evidance of slides, floods
