3. A Cone Penetration Test result were given in the table below. A. Plot the cone penetration test data (CPT) along the depth including the Friction ratio (FR) B. Indicate the soil classification with depth C. Estimate angle of shearing resistance of the soil () at depth 7.5 m (You should use the Robertson and Campanella, 1983 graphs in the reference text book for B and C) Depth (m) qe (MPa) fs (kPa) fr (%) Soil Classification 0.5 1.86 22.02 1.5 1.16 28,72 2.5 2.28 24.89 3.5 0.29 12.44 4.5 0.38 15.32 5.5 0.40 14.74 6.5 6.90 28.72 7.5 9.20 26.81 8.5 8.45 43.09 9.5 9.50 34.60 NOTE : Assume an average y = 16.5 kN/m' to GWT at depth at 3m, and yut= 20 kN/m' for GUT

3. A Cone Penetration Test result were given in the table below. A. Plot the cone penetration test data (CPT) along the depth including the Friction ratio (FR) B. Indicate the soil classification with depth C. Estimate angle of shearing resistance of the soil () at depth 7.5 m (You should use the Robertson and Campanella, 1983 graphs in the reference text book for B and C) Depth (m) qe (MPa) fs (kPa) fr (%) Soil Classification 0.5 1.86 22.02 1.5 1.16 28,72 2.5 2.28 24.89 3.5 0.29 12.44 4.5 0.38 15.32 5.5 0.40 14.74 6.5 6.90 28.72 7.5 9.20 26.81 8.5 8.45 43.09 9.5 9.50 34.60 NOTE : Assume an average y = 16.5 kN/m' to GWT at depth at 3m, and yut= 20 kN/m' for GUT

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter17: Subsoil Exploration

Section: Chapter Questions

Problem 17.12P

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Similar questions

Cone penetrometer soundings were used for the subsurface investigation of a planned construction site. At one sounding location, the value recorded for qc at a depth of 21 feet was 150 ksf. The soil has a unit weight of 115 pcf. Using criteria that relate CPT results and the soil angle of internal friction, estimate the value of f for the sand at the test depth (known from borings).
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