Question: A dry sand sample was tested in direct shear and yielded a shear strength of 1 3 0 kPa under a normal stress of 2

A dry sand sample was tested in direct shear and yielded a shear strength of 130 kPa under a normal stress of 211 kPa. Lab results indicate the soil's wet unit weight is 16.9 kN/m3 and the saturated unit weight is 20.4 kN/m3. Determine the shear strength, in kPa, within the native sand deposit at a depth of 4 m below the water table. The water table is 3 m below ground surface. Provide your answer with 2 decimal places, do not include the units and assume a unit weight for water of 9.81 kN/m3.

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