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Code No: A26A3
BVRAJU INSTITUTE OF TECHNOLOGY, NARSAPUR
(UGC - AUTONOMOUS)
B.Tech III Year II Semester Supplementary Examinations, Sep/Oct 2020
FOUNDATION ENGINEERING
( C i v i l E n g i n e e r i n g )
Time: 2 Hours Max Marks: 70
Note: Answer any Five Questions
(5x14 = 70 Marks)
1. a) Explain the need of soil exploration BL-2 CO-1
b) Explain the procedure of obtaining a chunk sample. BL-2 CO-1
2. Describe the procedure of conducting a standard penetration test & explain about the correction
factors to be applied. BL-2 CO-1
3. a) Explain about the static method in bearing capacity of piles. BL-2 CO-2
b) Give the complete classification of piles. BL-2 CO-2
4. Determine the allowable gross load and net allowable load for a square footing of 2m side and with a
depth of foundation of 1 m. Use Terzaghi’s theory and assume local shear failure. Take factor of
safety of 3 and ᵧ = 12 kN/m3
,c= 15 kN/m2
and Ø = 25. Nc = 14.8 , Nq = 5.6 & Nᵧ = 3.2 BL-3 CO-2
5. Explain the components of a well foundation with neat sketches. BL-2 CO-3
6. a) What are the different shapes of well foundations? BL-1 CO-3
b) What are the rectifying methods of tilts & shifts in well foundations? BL-1 CO-3
7. a) What are the different types of retaining walls? BL-1 CO-4
b) Explain about the stability analysis of a retaining wall. BL-2 CO-4
8. A vertical cut is to be made in clayey soil for which tests gave c= 30 kN/m2
, ᵧ = 16 kN/m3
and
Ø = 0. Find the maximum height for which the cut may be temporarily unsupported. For I = 90 0
the
value of stability number is 0.261. BL-3 CO-5
R 15

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Ay 2020 2021 fe supply qp

  • 1. Code No: A26A3 BVRAJU INSTITUTE OF TECHNOLOGY, NARSAPUR (UGC - AUTONOMOUS) B.Tech III Year II Semester Supplementary Examinations, Sep/Oct 2020 FOUNDATION ENGINEERING ( C i v i l E n g i n e e r i n g ) Time: 2 Hours Max Marks: 70 Note: Answer any Five Questions (5x14 = 70 Marks) 1. a) Explain the need of soil exploration BL-2 CO-1 b) Explain the procedure of obtaining a chunk sample. BL-2 CO-1 2. Describe the procedure of conducting a standard penetration test & explain about the correction factors to be applied. BL-2 CO-1 3. a) Explain about the static method in bearing capacity of piles. BL-2 CO-2 b) Give the complete classification of piles. BL-2 CO-2 4. Determine the allowable gross load and net allowable load for a square footing of 2m side and with a depth of foundation of 1 m. Use Terzaghi’s theory and assume local shear failure. Take factor of safety of 3 and ᵧ = 12 kN/m3 ,c= 15 kN/m2 and Ø = 25. Nc = 14.8 , Nq = 5.6 & Nᵧ = 3.2 BL-3 CO-2 5. Explain the components of a well foundation with neat sketches. BL-2 CO-3 6. a) What are the different shapes of well foundations? BL-1 CO-3 b) What are the rectifying methods of tilts & shifts in well foundations? BL-1 CO-3 7. a) What are the different types of retaining walls? BL-1 CO-4 b) Explain about the stability analysis of a retaining wall. BL-2 CO-4 8. A vertical cut is to be made in clayey soil for which tests gave c= 30 kN/m2 , ᵧ = 16 kN/m3 and Ø = 0. Find the maximum height for which the cut may be temporarily unsupported. For I = 90 0 the value of stability number is 0.261. BL-3 CO-5 R 15