15MN64A: Rock Mechanics and Ground Control Mining 6th Sem Syllabus for Diploma DTE Karnataka C15 Scheme

Rock Mechanics and Ground Control detail syllabus for Mining Engineering (77), C15 scheme is taken from DTE Karnataka official website and presented for diploma students. The course code (15MN64A), and for exam duration, Teaching Hr/week, Practical Hr/week, Total Marks, internal marks, theory marks, duration and credits do visit complete sem subjects post given below.

For all other mining 6th sem syllabus for diploma c15 scheme dte karnataka you can visit Mining 6th Sem Syllabus for Diploma C15 Scheme DTE Karnataka Subjects. For all other Electives subjects do refer to Electives. The detail syllabus for rock mechanics and ground control is as follows.

Pre-requisites:

Knowledge of Underground metal & coal mining and opencast metal & coal mining.

Course Objectives:

A good knowledge of rock behaviour is essential in designing rock excavation projects.Rock Mechanics knowledge in mining can solve many of the problems associated with rock pressure and rock movement.
This course provides detailed knowledge on rock properties and equips the students with the ability to carry out various tests, monitoring the rock behaviour, analysis of data and solving rock mechanics problem in mining projects.

Course Outcomes:

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UNIT-1 IMPORTANCE OF ROCK MECHANICS

Definition of some important terms used in rock mechanics. Scope and application of rock mechanics in mining. Constraints in rock mechanics application. Problems associated with rock mechanics, Introduction to stress analysis. Principal stresses and strains. Differential equations of static equilibrium. Mohr’s circle of stress and circle of strain.

UNIT-2 PHYSICAL PROPERTIES OF ROCKS

Porosity, Density & its types, moisture content, Degree of Saturation, Permeability and its determination by longitudinal and radial tests, Thermal and Electrical properties, Swelling of rocks, Anisotropy and Durability.

UNIT-3 MECHANICAL PROPERTIES OF ROCKS

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UNIT-4 ROCK TESTING AND ROCK MASS CLASSIFICATION

Preparation of specimens, Determination of: Uniaxial compressive strength, tensile strength-Brazilian test, Flexural strength test-three point load and four point load test, Shear strength test-Direct and Indirect shear strength. Determination of elastic constants by static method: Uni-axial compression test, Brazilian test, Stress- strain graph, Determination of elastic
constants of rocks by Dynamic methods: Resonance frequency method, Ultrasonic pulse method. Creep in rocks and its measurements. Rock mass classification by RMR and Q-System.

UNIT-5 SUB SIDENCE DUE TO MINING

Subsidence: Definition of various terms – Angle of draw, Critical width, Critical area, Sub-critical area, Super critical area, factors influencing subsidence damages, Causes, impacts, prediction, Preventive measures, Dome’s theory of Subsidence, Subsidence survey methods -Objectives. Surface movements and Deformation during Long wall Mining.

UNIT-6 STRATA CONTROL

For complete syllabus and results, class timetable and more pls download iStudy. Its a light weight, easy to use, no images, no pdfs platform to make students life easier.

SUGGESTED LIST OF STUDENT ACTIVITIES

Note: Students are grouped into batches and each batch should not have more than five students.

1. Each student should do any one of the following type activity or any other similar activity related to the course and before conduction, get it approved from concerned Teacher and HOD.
2. Each student should conduct different activity and no repetition should occur

Make a Visit to any nearest mine or use the information obtained from the vocational training and Submit hand written report of 5 to10 pages or ppts or charts from the following activities or similar activities.

• Critically review rock mechanics principles, methods and their applications to engineering practices.
• Measure the physical characteristics of rock mass.
• Identify and predict the response of rock mass to loading.
• Elastic constants of rocks & classify rock mass for engineering applications.
• Prediction of Subsidence & its control measures.
• Decide the proper Strata control methods.

Note to IA verifier:

The following documents to be verified by CIE verifier at the end of semester

1. Blue books ( 20marks)
2. Student suggested activities report for 05 marks and assessed.
3. Student feedback on course regarding Effectiveness of Delivery of instructions & Assessment Methods.

SUGGESTED READINGS

1. Rock mechanics for Engineers, by B.P.Verma
2. Elements of Mining Technology, by D.J.Deshmukh -Vol 1,2 ,3
3. Wining and working Vol 1,2 ,by R.T.Deshmuk
4. Rock Mechanics & Ground Control, by D.Biswas, Lovely Prakashan, Dhanbad.
5. Rock Mechanics- Leonard Obert and Wilbur I.Duvall

SUPPLEMENTARY READINGS

1. Ground Control, Peng, S.S, Wiley Publications, New York, 1987
2. Rock Mechanics for Underground Mining, Brady, B.H.G. and Brown, S.T. Chapman and Hall, 1993
3. Underground Excavations in Rocks, Hoek, E. and Brown, S.T. Institute of Mining Metallurgy, London,1980
4. Ground Mechanics in Hard Rock Mining, Jeremic,M.L Oxford & IBH Publishing Company, New Delhi, 1987.
5. Introduction to Rock Mechanics, Goodman R.E. John Wiley & Sons, 1989
6. Engineering Rock Mechanics- An introduction to the principles, John A Hudson and John P Harrison, Pergamon Press, 1997.

List of Software/Learning Websites

1. http://www.joy. com/
2. http://en.wikipedia.org/wiki/Underground_mining_(hard_rock)
3. http://www.mtu-online.com/mtu/applications/mining/undergroundmining-machines/
4. http://www.greatmining.com/Underground-Mining.html
5. YouTube

Model Question Paper:

(CIE)

1. Describe the scope of Rock mechanics.
2. Define the following
1. Stress
2. Strain
3. Principle stresses
4. Ultimate stress
3. What is rock mechanics? List out the application of rock mechanics in mining.

OR Explain Mohr’s circle of stress and circle of strain.

4. Explain differential equations of static equilibrium.

OR Explain principal stresses and strains influencing the mine workings.

Model Question Paper:

Part-A

Answer any 6 of the following 6×5=30 marks

1. Define the following
1. Stress
2. Strain 1 U
2. Describe the scope of Rock mechanics 1 U
3. What information is obtained by porosity of rocks? 2 U
4. Why tensile strengths of rocks are determined indirectly? 3 U
5. What are indirect tests for determination of tensile strength of rocks? 3 U
6. Define Poisson’s ratio, Young’s modulus. 4 U
7. Discuss the Moh’s scale of hardness. 4 U
8. Classify the rock mass based on RMR System 4 A
9. Write a note on Guniting, 6 A

Part-B

Answer any 7 of the following 7×10=70 marks

1. Explain Mohr’s circle of stress and circle of strain. 1 A
2. Describe the experimental determination of permeability by radial test. 2 A
3. Explain the preparation of rock specimens for determination of various strength tests. 3 A
4. Describe any two methods for determination of direct shear strength of rock samples. 3 An
5. Describe the determination of shear strength of rock by indirect method-by punch shear test 3 An
6. What is Creep? Explain how do measure creep in rocks. 4 A
7. What are the factors which affects subsidence? 5 An
8. Describe the control measures for subsidence 5 An
9. What is rock bolting? Describe the method of rock bolting. 6 A
10. Explain Stage grouting and Packer grouting. 6 A

For detail syllabus of all other subjects of BE Mining, C15 regulation do visit Mining 6 syllabus for C15 Regulation.

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