2. SPT test was performed at a shallow site composed of uniform granular soil with a unit weight = 20 kN/m³ (shown below are N60). a) Convert to (Nı)60. b) Estimate the range of friction angles at depths between 20 and 40 ft. Use various correlations. Compare the differences.

2. SPT test was performed at a shallow site composed of uniform granular soil with a unit weight = 20 kN/m³ (shown below are N60). a) Convert to (Nı)60. b) Estimate the range of friction angles at depths between 20 and 40 ft. Use various correlations. Compare the differences.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Test for Determination of Shear Strength

The term shear strength is often associated with the soil. Shear strength is defined as the resistance to the deformation of soil particles due to the continuous action of shear stress. In short, shear strength is the maximum shear stress that a soil can sustain.

Question

2. SPT test was performed at a shallow site composed of uniform granular soil with a unit
weight = 20 kN/m³ (shown below are N60).
a) Convert to (N1)60.
b) Estimate the range of friction angles at depths between 20 and 40 ft. Use various
correlations. Compare the differences.
SPT N-values (bpf)
10
20
30
40
50
10
Silty Sand (SM):
Piedmont Residuum
30
40
50
60
Depth (feet)

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