Rock Mechanics (PETE2202)
Petroleum Engineering - PET
Semester: Second Semester
Level: 200
Year: 2018
School/Faculty: NAIHP1 DEPARTMENT/YEAR: PETE/Year 1 LECTURER(S): Dr. Fozao K
COURSE CODE: PETE 2202 COURSE TITLE: ROCK MECHANICS COURSE CREDIT: 04
DATE: 02/08/2018 HALL: NAHP12 TIME: 2hr
THE UNIVERSITY OF BAMENDA
P.O BOX 39 Bambili
REPUBLIC OF CAMEROON
Peace-Work-Fatherland
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Instructions:
Answers all
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Questions
Q1 a. List six potential Rock Mechanics problems. 3 Marks
b. Describe two ways in which rocks are suitable as engineering materials.
7 Marks
Q2. Write short notes on the following;
a) Bieniawski Engineering classification of rock mass 8 Marks
b) Degree of rock fissuring 7 Marks
Q3. A) Draw a typical stress-strain curve for a rock obtained from a uniaxial
compression test and describe the different regions of this curve. 9 Marks
B) Define the main parameters that could be determined from such a test. 6 Marks
Q4. Differentiate between the poroelastic and the elastic-plastic behavior of rocks.
l5Marks
Q5. A) A structure having a length of 22.86m increases in length by 9.15cm due to
subsiden. Determine the strain in this structure. 5 Marks
B) An investigator uses a steel tape of 30.5m in length, having a cross section of
6.35mm by 0.76mm. What is be its elastic modulus if its elongation is 1.63mm in when
held by a force of 53.4N? 7 Marks
C) Determine the ratio of horizontal to vertical stress for a gravity loaded material
with a Poisson's Ratio of 0.3 3 Marks
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