GTU Study
KHUDKIBOOK
UNDER GROUND MINING
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3362203
Code: 3362203
Credits: 8
Semester 6
CSE
Under Ground Mining Of Coal
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Under Ground Mining Of Coal Syllabus — Unit-wise Content
The official GTU curriculum for Under Ground Mining Of Coal (subject code 3362203) as prescribed for CSE · Semester 6 divides the course into 5 units, covering 29 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (3362203)Unit 1 Characteristics of Coal and Mining conditions in Indian coal Fields
- 1.1. Characteristics of Indian Coal seams.
- 1.2. Mining conditions in Indian coal fields –Jharkhand, Bihar, Orissa, Madhya Pradesh, Maharashtra, and Andhra Pradesh.
- 1.3. Classification of Underground Coal Mining method: i. Board and pillar Mining ii. Longwall advancing and retreating. iii. Horizon Mining. iv. Hydraulic Mining
Unit 2 Board and Pillar Method – Development
- 2.1. Elements of board and pillar mining:- gallery, headings, face, drift, cross cut, pillar, dip and strike, apparent dip, junction, panel, district, barrier, roof and floor
- 2.2. Applicability conditions of B and P method with advantage and disadvantage
- 2.3. Methods of driving galleries:Manual with use of explosive (Solid Blasting) - Hand held coal drill machine and Universal drilling machine
- 2.4. Mechanical without use of explosives - Continuous miner, Road header, Size of pillar, Shape of pillar – Square, Rectangular, Rhombus
- 2.5. Panel designing– finding out number of Pillar in a panel for a particular seam, various panel designing operation depending upon seam conditions, barrier formation, Advantages
- 2.6. Ventilation of mine working with standard of ventilation
Unit 3 Board and Pillar Mining– Depillaring /Final Extraction of Coal
- 3.1. Preparatory arrangement before Depillaring
- 3.2. Line of extraction – Straight line, Diagonal line, Step diagonal, Steep diagonal line
- 3.3. Depillaring by Caving – Applicability conditions, Difficulties – Local fall, Main fall, Air blast, Overriding of pillar, Inundation and their preventive measures. Underground Mining of Coal Course Code: 3362203 GTU/ NITTTR Bhopal/14 Gujarat State 3 Unit Major Learning Outcomes (In the Cognitive Domain) Topics and Sub-topics method. 3.4 Depillaring by Stowing – Applicability conditions, material used for stowing, problems associated with preventive measures.
- 3.5. Transportation System: For Men – Staircase, Cage, Man riding System.
- 3.6. Coal and Material Transport – Skip, Rope haulage system, Belt conveyor
Unit 4 Longwall Method
- 4.1. Types of Longwall Methods: Advancing longwall-merits and demerits, Retreating longwall-merits and demerits
- 4.2. Length and direction of face
- 4.3. Panel preparation – various road ways driven for ventilation and transport purpose. Face length calculation, overall size of panel.
- 4.4. Longwall extractions – Cyclic and Non- cyclic system, Single Unit and Double Unit face
- 4.5. Face cutting and Sumping operation by shearer and plough.
- 4.6. Ventilation of long wall faces.
- 4.7. Coal and Material Transport system
- 4.8. Types of Face support in longwall method – Powered supports, Prop support.
Unit 5 Stowing Practice
- 5.1. Different types of stowing – Hydraulic, pneumatic and mechanical.
- 5.2. Sand Transportation: Sand gathering/ mining operation of river bed end. Methods - manual, shovel, pumping of sand slurry.
- 5.3. Transportation of sand to mines Manual and shovel loading of trucks/dumpers, Pipe haulages, Railways, Aerial ropeways, Belt conveyors.
- 5.4. Surface sand bunkers
- 5.5. Surface sand stowing arrangements - Mixing chambers, various devices for efficient hydraulic conveyance of sand – water meter, lea recorder.
- 5.6. Stowing operation - Layout of stowing pipes in shafts and roadways up to stowing faces. Relation between Hydraulic Gradient Line and Hydraulic Underground Mining of Coal Course Code: 3362203 GTU/ NITTTR Bhopal/14 Gujarat State 4 Unit Major Learning Outcomes (In the Cognitive Domain) Topics and Sub-topics Profile Line and H: L ratio.
- 5.7. Problems during Sand Stowing: Pipe jamming, pipe wears, Maintenance of pipes and fittings.
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