KIGALI INSTITUTE OF SCIENCE AND TECHNOLOGY
FACULTY OF ENGINEERING
DEPARTMENT OF CIVIL ENGINEERING & ENVIRONMENTAL TECHNOLOGY
END OF SEMESTER II EXAMINATIONS
ACADEMIC YEAR: 2012-2013
YEAR OF STUDY:
EXAMINATION PERIOD:
SEMESTER:
SUBJECT CODE & NAME:
II
Programme: Full Time
√
Part Time
FOUNDATION ENGINEERING
NO. OF STUDENTS:
DURATION:
2hrs
MAX. MARKS:
60
DATE OF SUBMISSION:
NAME OF INTERNAL EXAMINER:
TEL:
Dr GATABAZI Jean Damascene
E-MAIL:
0785825789
dgatabazi@yahoo.com
SIGNATURE:
Submitted
(i) Syllabus
√
(ii) Main Exam Qns.
√
(iii) Marking scheme
√
(iv) Supp exam Qns. √
(v) Marking scheme
√
Head of Department:
Date:
MAY 2013
KIGALI INSTITUTE OF SCIENCE AND TECHNOLOGY
FACULTY OF ENGINEERING
DEPARTMENT OF CIVIL ENGINEERING AND ENVIRONMENTAL TECHNOLOGY
INTERNAL MODERATOR’S REPORT
DETAILS OF MODERATOR
Name of the Moderator:……… ……………………………………………………………………………………
Designation:………………………… ………………………………………………………………………………………….
Area of Specialisation:…………
DETAILS OF MODERATING SUBJECT
Module Code and Title:
Year of Study
: Sem II
Academic Year: 2012-2013
DETAILS OF MODERATION
Sl.No
DESCRIPTION OF ASSESSMENT
1.
Coverage of Syllabus
2.
Standard and Level of Question Paper
3.
Allocation /Distribution of Marks
4.
Allocation of Time
5.
Qualitative Treatment (Theory)
6.
Quantitative Treatment (Problem)
7.
Correlation between Qualitative and
Quantitative
COMMENTS,if any
Have comments been incorporated in the question paper or marking scheme by the staff? Yes
Signature of Moderator:
Date:
No
INDICATIVE CONTENT
Subsoil exploration
Purpose of soil exploration, exploration programme, boring in field, soil sampling, observation of
water tables, penetration tests(SPT,CPT), coring of rocks, determination of hydraulic conductivity,
preparation of boring logs, subsoil exploration report
Bearing capacity of shallow foundations
General concept, failure of soil at ultimate load, Terzaghi’s bearing capacity theory, general bearing
equation, different methods of determining bearing capacity
Settlement analysis
Procedure for calculation of final settlement, computation of final settlement based on theory of
elasticity, semi-empirical computation method (layering and combination method)
Pile foundations
Types and classification of piles, installation of piles, load transfer mechanism, pile capacity, pile
load test, negative skin friction, group capacity
Caissons and Well foundations
Design aspect of caisson, open caisson, pneumatic caisson, floating caisson, stability of well
foundations.
MAIN EXAM
KIGALI INSTITUTE OF SCIENCE AND TECHNOLOGY
Avenue de l'Armée,
B.P. 3900 Kigali,
Rwanda
INSTITUTE EXAMINATIONS -SEM:II
ACADEMIC YEAR 2012-2013
FACULTY OF ENGINEERING
DEPARTMENT: CIVIL
ENGINEERING & ENVIRONMENTAL TECHNOLOGY
II CE
YEAR: 3
SEMESTER:
MODULE:
CEE 3323: FOUNDATION ENGINEERING
Date: 29/04/2013
Time:2hrs
MAXIMUM MARKS =
60
INSTRUCTIONS
1. This paper contains FOUR (4) questions.
2. Answer THREE (3) Questions only:
Question ONE (1) from Section “A” is Compulsory and Answer any TWO (2) from
Section “B”
3. All questions carry equal marks.
4. No written materials allowed.
5. Do not forget to write your Registration Number.
6. Write all your answers in the booklet provided
7. Do not write any answers on this questions paper.
8. Start each question in a NEW page
SECTION:A
Question1:
( 20 marks)
Describe procedurally how the load test on pile is conducted and how the final safe load is
obtained.
SECTION: B
Question2:
(20 marks)
Sketch a well foundation. Show and describe its important elements (components).
Question3:
(20 marks)
The footing with B x L = 5m x 10m carrying 8000kN, is located at 4m from ground surface in fine
sand soil of medium density extended at large depth . This soil has the following parameters:
o Void ratio :0.7
o Water table is far from footing location
o Bulk unit weight =20kN/m3
o φ= 22o
Determine if the foundation soil can sustain safely this footing, using Terzaghi’s shear
failure analysis (use F.S = 3) .
For φ= 22o : Nc=12.92, Nq= 4.48, Nγ=1.55
Question4:
( 20 marks)
A square pile group of 9 piles was driven in to soft clay extending to a large depth. The diameter
and length of each pile were 30 cm and 9m respectively. If the unconfined compression strength of
the clay is 90 kN/m2 and the piles spacing is 90cm centre to centre , what is the capacity of the
group?
Assume the factor of safety 2.5, adhesion factor 0.75,and Nc=9