SPPU Civil Engineering (Semester 7)
Advanced Geotechnical Engineering
December 2016
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


Solve any one question from Q.1(a,b,c) & Q.2(a,b,c)
1(a) explain how soils are classified accordings to IS soil classification system.
3 M
1(b) Explain different clay minerals and their structural composition.
4 M
1(c) Discuss the various primary secondary bonds in respect of clay minerals
3 M

2(a) Derive the relation for coeffcient of lateral earth pressure at rest condition.
3 M
2(b) Explain the step for design of cantilever sheet pile wall.
4 M
2(c) Write a note on anchored sheet pile wall.
3 M

Solve any one question from Q.3(a,b,c) Q.4(a,b,c)
3(a) Differentiate between Rankine's and Coulombo thoery of earth pressure
3 M
3(b) Explain Culman's graphical method.
4 M
3(c) Determine the critical height of excavation of vertical cut in cohesive soil if C - 20KN/m2 and γ=15KN/m3.
3 M

4(a) Explain in short function of Geosynthetics.
3 M
4(b) State the properties and funtional requirement of Geosynthetics.
3 M
4(c) Write a note on
i) Mechnism of reinforced soil.
ii) Slope stabilization using soil nails.
4 M

Solve any one question from Q.5(a,b,c) Q.6(a,b,c)
5(a) State the different properties relevant for dynamic loading and explain any one with detail.
6 M
5(b) Describe elastic half space method in machine foundation.
6 M
5(c) Write a note on 'Design criteria for machine foundation'.
6 M

6(a) Why is shear modulus a soil property interest on soil dynamics?
6 M
6(b) State the design procedure for a block foundation for cyclic loading.
6 M
6(c) Define the following term.
i) Natural Frequency
ii) Period
iii) Reasonance
iv) Degree of Freedom.
6 M

Solve any one question from Q.7(a,b) Q.8(a,b)
7(a) What is the purpose of sand drain? And also explain function of vertical sand drain.
8 M
7(b) State the procedure of vibro-flotation technique for ground improvement.
8 M

8(a) Explain in-situ ground improvement by compaction piles.
8 M
8(b) Describe in short following terms in ground improvement.
i) Grouting
ii) Deep mixing
8 M

Solve any one question from Q.9(a,b,c) & Q.10(a,b)
9(a) What do you mean "Rheology' in respect of soil?
5 M
9(b) What are the limitations of Raheological models?
5 M
9(c) Explain Kelvin's rheological model with a neat sketch.
6 M

10(a) Write a note on following soil phenomena.
i) Secondary consolidation
ii) Creep
8 M
10(b) Explain Maxwell's Rheological model.
8 M



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