PTU Punjab Technical University B-Tech May 2019 Question Papers 6th Semester CIVIL Engineering (CE)

Total No. of Pages : 02

Total No. of Questions : 09

B.Tech.(CE) (2011 Onwards) (Sem.?6)

FOUNDATION ENGINEERING

Subject Code : BTCE-603

M.Code : 71084

Time : 3 Hrs. Max. Marks : 60

INSTRUCTION TO CANDIDATES :

1.

SECTION-A is COMPULSORY consisting of TEN questions carrying T WO marks

each.

2.

SECTION-B contains FIVE questions carrying FIVE marks each and students

have to attempt any FOUR questions.

3.

SECTION-C contains T HREE questions carrying T EN marks each and students

have to attempt any T WO questions.

SECTION-A

Q1) Answer briefly :

a)

What do you understand by significant depth of soil exploration?

b)

List down factors affecting bearing capacity for soils.

c)

Define safe bearing capacity

d)

Define Floating foundation.

e)

Discuss briefly utility of batter piles.

f)

List down effects of negative skin friction.

g)

List out the various methods of site exploration.

h)

Define allowable bearing capacity.

i)

Calculate the active earth pressure give that C = 20kN/m2 and unit weight of the soil

being 20kN/m3 for a vertical cut of depth 3 m. The soil is cohesion- less soil.

j)

Write assumptions of coulomb's theory.

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SECTION-B

Q2) Write short note on bore log report with neat sketch.

Q3) Write the essential features and applications of Rotary sampler.

Q4) A circular foundation is 2.4 m diameter. If the depth of foundation is 1 m, determine the net

allowable load. Take c = 30 kN/m2 and unit wt. = 19.0 kN/m3 = 15? and factor of and

safety as 3.0. Use Terzaghi's equation and assume local shear failure. Take value of Nc, Nq

and Ny as 12.9, 4.4 and 2.5 respectively.

Q5) Explain the parts of a Pneumatic caisson with figure.

Q6) Give comparison of Rankine's and Coulomb's theory.

SECTION-C

Q7) Derive bosussinesq equation for a point load.

Q8) Define pile foundation. Discuss about the types of pile and their functions.

Q9) What are the different methods of soil stabilization? Explain with neat sketches.

NOTE : Disclosure of identity by writing mobile number or making passing request on any

page of Answer sheet will lead to UMC case against the Student.

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This post was last modified on 04 November 2019