Section 8: Test Hole/Boring Details
Anchor: #i1004342Test Hole Introduction
When detailing a test hole or boring detail, it is not necessary to show every change that appears on the boring log sheet. Differentiate particular soil and bedrock formations, using appropriate symbology and descriptions, only when there are significant differences between layers. In addition to describing the kind and condition of a formation, include its color and natural moisture state (dry, moist, saturated, etc.). For additional test hole or boring information, refer to the Geotechnical Manual
Figure 2-12. Test Hole Example.
Online users can click 2-12 to view this illustration in PDF.
|
Bedrock |
Igneous |
Granite Basalt |
|
|---|---|---|---|
|
|
Metamorphic |
Gneiss Schist Slate Marble |
|
|
|
Sedimentary |
Clastic |
Shale (Claystone) Siltstone Limestone Sandstone Glauconite Conglomerate Lignite |
|
Soils |
Cohesive |
Clay |
|
|
|
Cohesionless |
Silt Sand Gravel |
|
|
Soil and Bedrock |
Common Modifiers |
Color |
|---|---|---|
|
Basalt |
Calcareous |
Black |
|
Boulder |
Clayey |
Blue |
|
Calcite |
Fine |
Brown |
|
Conglomerate |
Hard |
Dark |
|
Chalk |
Large |
Gray |
|
Chert |
Medium |
Green |
|
Clay |
Moist |
Light |
|
Claystone |
Nodules |
Red |
|
Cobble |
Organic |
Tan |
|
Dolomite |
Sandy |
White |
|
Glauconite |
Shaley |
Yellow |
|
Gneiss |
Silty |
|
|
Granite |
Slickensided |
|
|
Gravel |
Small |
|
|
Gypsum |
Soft |
|
|
Halite |
Wet |
|
|
Lignite |
|
|
|
Limestone |
|
|
|
Marble |
|
|
|
Redbed |
|
|
|
Schist |
|
|
|
Sand |
|
|
|
Shale |
|
|
|
Silt |
|
|
|
Siltstone |
|
|
|
Sandstone |
|
|
Figure 2-13. Soil and Bedrock Symbology.
Online users can click 2-13 to view this illustration in PDF.