Information obtained when drilling at a site would include: The type of soil present at the site and the thickness of the layers.   The location of underground utilities.   Arial Photographs.   All of the above.

During drilling a borehole, which of the following is NOT a requirement of a grab sample lable?   Question 15 options:   Date   BH#   Sample type   Depth

Soil course

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b) A geotechnical laboratory reported these results of five samples taken from a single boring. Determine which are not correctly reported, if any, show your work. Hint:take Yw = 9.81kN/m³ Sample #1:w=30%,Ya = 14.9 kN/m³, Ys = 27 kN/m³, clay Sample #2:w=20%,Ya = 18 kN/m³, Ys = 27 kN/m³, silt Sample #3:w=10%,Ya = 16 kN/m³, Y = 26 kN/m³, sand Sample #4:w=22%,Yd = 17.3 kN/m³, Ys = 28 kN/m³, silt Sample #5:w=22%,Yd = 18 kN/m³, Ys = 27 kN/m³, silt

How does the Terra-Probe procedure is considerably faster than the vibroflotation procedure?

Compare advantages and disadvantages of test pits versus soil borings for obtaining information on subsurface conditions.

A large sized excavation is made in a stiff clay whose saturated unit weight is 17.27 kN/m3. When the depth of excavation reaches 7.5m, cracks appear and water begins to flow upward to bring up sand to the surface. Subsequent borings indicate that the clay is underlain by sand at a depth of 11m below the original ground surface. What is the depth to the water table outside the excavation below the original ground level?

What is C sub r referring to?

Answers a) 0.864 b) 18.76 kN/m3 c) 5.91 meters