Gujarat Technological UniversityWinter 2023 examination

GTU 3150615 Soil Mechanics Winter 2023 Question Paper & PDF

B.E. · Civil Engineering · Semester 5 · Subject code 3150615
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Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 10:30 AM – 1:00 PM
Questions
5 with internal choice
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13 of 25 questions on this paper were also asked in other years. 1 more is a type of question GTU sets again with new data. Each is marked below with the years it appeared.See all 33 repeated 3150615 questions, most asked first

Q.1

14 Marks
(a)
3 marks
Explain Bore log in detail. Its prediction used in soil exploration.
(b)
4 marks

Define soil exploration and its objectives. Explain the stages of Site Investigations.

(c)
7 marks

Enlist the various methods of Exploration? Explain any one in detail with sketch.

Q.2

14 Marks
(a)
3 marks
Difference between Flexible and Rigid pavements
(b)
4 marksAsked in 3 of 6 papers

Differentiate between General shear failure and Local shear failure with neat sketch.

Also asked in Winter 2025 Q5a, Summer 2024 Q4a OR

(c)
7 marks

A square pile group of 9 piles passes through a recently filled up material of 4 m depth. The diameter of the pile is 0.3 m and pile spacing is0.9m center to center. If the UCS of soil is 60 kN/m² and unit weight is 15 kN/m³. Compute the negative skin friction.

(c)
7 marksSame type asked in 5 of 6 papers

Determine ultimate bearing capacity using Terzaghi’s theory. A strip footing 1.5m wide resting on a saturated clay at a depth 2m below ground level. (Ø = 0, γsat. = 20 kN/m³, C = 30 kN/m²) The water table is also at a depth of 2m from the ground level. If the water table rise by 1m. Calculate the reduction in ultimate bearing capacity.

Also asked in Summer 2026 Q2c OR, Winter 2025 Q4c, Summer 2025 Q3c, Summer 2023 Q4c OR

Q.3

14 Marks
(a)
3 marksAsked in 2 of 6 papers

Write the assumption and limitations of Terzaghi’s Bearing capacity theory.

Also asked in Summer 2024 Q2a

(b)
4 marks
Define Following:
1Gross pressure intensity
2Ultimate bearing capacity
3Safe bearing Capacity
4Allowable bearing Capacity
(c)
7 marksAsked in 4 of 6 papers

Explain with neat sketch SPT in detail – its working principle, corrections applied

Also asked in Winter 2025 Q4a, Summer 2024 Q3b OR, Summer 2023 Q1b

(a)
3 marksAsked in 3 of 6 papers

Name and explain the shear tests which may be performed based on the different drainage conditions.

Also asked in Summer 2024 Q1b, Summer 2023 Q5a

(b)
4 marks

Explain importance of ‘Unconfined Compression Test’& ‘Laboratory Vane Shear Test’.

(c)
7 marksAsked in 3 of 6 papers

Describe different types of Geosynthetics and its application with sketch in various domain of civil engineering.

Also asked in Summer 2024 Q4b OR, Summer 2023 Q5c OR

Q.4

14 Marks
(a)
3 marks
Enlist various classification of pile.
(b)
4 marksAsked in 2 of 6 papers
Explain in detail “Under Reamed Pile Foundation”.

Also asked in Summer 2025 Q5b

(c)
7 marks

Write procedure for estimate the group capacity of piles in sand. Also explain negative skin friction and its effects on the pile?

(a)
3 marks
Briefly explain with sketch Boussinesq’s equation.
(b)
4 marksAsked in 2 of 6 papers
Explain how the water table effects on bearing capacity.

Also asked in Summer 2023 Q4b OR

(c)
7 marksAsked in 2 of 6 papers
Explain Swedish circle method of stability analysis

Also asked in Summer 2023 Q3c OR

Q.5

14 Marks
(a)
3 marksAsked in 3 of 6 papers
Discuss various types of slope failures

Also asked in Summer 2026 Q5b, Summer 2023 Q3a OR

(b)
4 marksAsked in 2 of 6 papers
Differentiate the Infinite and finite slope.

Also asked in Summer 2025 Q1b

(c)
7 marksAsked in 3 of 6 papers

Critically explain factors affecting bearing capacity in detail with sketch.

Also asked in Winter 2025 Q5b, Summer 2023 Q4b

(a)
3 marks

Elaborate the conditions where a pile foundation is more suitable than a shallow foundation.

(b)
4 marksAsked in 4 of 6 papers
Explain the concept of Pressure Bulb with neat sketches.

Also asked in Summer 2026 Q3a OR, Summer 2025 Q4a OR, Summer 2024 Q1a

(c)
7 marksAsked in 2 of 6 papers

Explain in detail Plate load test with neat sketch. Its importance and out puts from this test.

Also asked in Summer 2023 Q2c OR

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About this paper

Official Gujarat Technological University (GTU) examination paper for Soil Mechanics (Winter 2023, B.E. · Civil Engineering, Sem 5). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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