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16-Civ-A4 Geotechnical Materials and Analysis: May 2013

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 True/False with justification
  2. Question 2 Effective stress under an added load — drained vs undrained
  3. Question 3 Grain-size analysis of four soils
  4. Question 4 Increase in vertical stress below point A by superposition
  5. Question 5 Seepage under a cut-off wall — flow net, quantity, effective stress, stability
  6. Question 6 Stress profile with capillary rise, and consolidation settlement

Start with Question 1 →

Paper format: 98-Civ-A4 Geotechnical Materials and Analysis, National Examinations May 2013 — closed book, 3 hours, 6 questions totalling 100 marks; drawing instruments required; all charts and equations supplied at the back. Answer all questions. Take γw = 9.81 kN/m³ throughout.

Reference texts. B. M. Das & K. Sobhan, Principles of Geotechnical Engineering (Cengage); R. F. Craig, Craig's Soil Mechanics (Knappett & Craig, CRC); R. D. Holtz, W. D. Kovacs & T. C. Sheahan, An Introduction to Geotechnical Engineering (Pearson). Chart/influence factors per the PEO formula sheet supplied with the paper.