Observations/Finding

Our AS ENGINEERING AND CONSULTING (ASEC) representative visited the site at the client’s request to observe soil placement and measure the soil’s relative moisture content. The soils consist of a light tan, micaceous sandy silt with foliated schist fragments and small boulders. Wilbanks contractors were placing soils in 18 to 24-inch lifts.

The relative moisture was measured within the fill area, and the results are noted below:

1 foot moist%=15.4%
2-foot moist%=14.8%,
3 foot moist%=14.1%.

Three DCPs were performed in the fill area to measure the relative soil strength. DCP Data is noted below:

DCP-1

1- 10- Gray, brown, micaceous, Silty fine to medium SAND with clay.
2- 13- Gray, brown, micaceous, Silty fine to medium SAND with clay.
3- 18- Gray, brown, micaceous, Silty fine to medium SAND with clay.
4- 16- Gray, brown, micaceous, Silty fine to medium SAND with clay.

DCP-2

1- 9- Gray, brown, micaceous, Silty fine to medium SAND with clay.
2- 15- Gray, brown, micaceous, Silty fine to medium SAND with clay.
3- 18- Gray, brown, micaceous, Silty fine to medium SAND with clay.
4- 20+- Gray, brown, micaceous, Silty fine to medium SAND with clay.

DCP-3

1-7- Gray, brown, micaceous, Silty fine to medium SAND with clay.
2- 13- Gray, brown, micaceous, Silty fine to medium SAND with clay.
3- 16- Gray, brown, micaceous, Silty fine to medium SAND with clay.
4- 20+- Gray, brown, micaceous, Silty fine to medium SAND with clay.