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Download JNTUA M.Tech 1st Sem 2016 Feb Reg-Supple 9D12101 Advanced Soil Mechanics Question Paper

Download JNTUA (JNTU Anantapur) M.Tech ( Master of Technology) 1st Semester 2016 Feb Reg-Supple 9D12101 Advanced Soil Mechanics Previous Question Paper

This post was last modified on 30 July 2020

This download link is referred from the post: JNTUA M.Tech 1st Sem last 10 year 2010-2020 Previous Question Papers (JNTU Anantapur)


Code: 9D12101

M.Tech I Semester Regular & Supplementary Examinations February 2016

ADVANCED SOIL MECHANICS

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(Geotechnical Engineering)

(For students admitted in 2011, 2012, 2013, 2014 and 2015 only)

Time: 3 hours

Max Marks: 60

Answer any FIVE questions

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All questions carry equal marks

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  1. Explain the following:
    1. Diffused double layer.
    2. Isomorphous substitution.
    3. Specific surface.
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    5. Soil fabric.
  2. (a) Explain engineering properties of clay minerals in detail.
    (b) What are the factors affecting permeability?
  3. (a) What are the characteristics of flow net? Explain uses of flow net.

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    (b) What is the criterion for filter design?
  4. Consolidated undrained test were conducted of a saturated clay soil given the following results:
    Cell pressure σ3 (kN/m²) | Deviator stress σd (kN/m²) | Pore water pressure U(kN/m²)
    150 | 102 | 80
    300 | 200 | 164

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    450 | 304 | 264
    600 | 405 | 325
    Determine the effective stress strength parameters C' and Ø' by Mohr circle method and modified strength envelop method.
  5. (a) Write short notes on thixotropy.
    (b) What are the different types of liquefaction? Explain mitigation methods to minimize the liquefaction.
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  7. Explain the shear strength of granular soils under plain strain condition. Give a simple correlation to obtain friction angle.
  8. (a) Explain consolidation by sand drains.
    (b) What is the effect of secondary consolidation on preconsolidation pressure?
  9. (a) What is shear strength? Draw the typical Mohr failure envelopes including Mohr circles from CD, CU and UU tests conducted on both normally consolidated (loose) and over consolidated (dense) clays in terms of total stresses and effective stresses.
    (b) What is critical void ratio? Describe its significance.
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This download link is referred from the post: JNTUA M.Tech 1st Sem last 10 year 2010-2020 Previous Question Papers (JNTU Anantapur)