Underground Mining of Coal
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Underground Mining of Coal Syllabus — Unit-wise Content
The official GTU curriculum for Underground Mining of Coal (subject code 4362201) as prescribed for Mining · Semester 6 divides the course into 5 units, covering 56 listed topics. This curriculum applies from the Jan-2024 intake. 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 (4362201)Unit 1 Fundamentals of Coal and Its Mining
- 1.1. Origin of coal, Rank of Coal
- 1.2. Banded Constituents of Coal
- 1.3. Coal Analysis
- 1.3.1. Ultimate Analysis
- 1.3.2. Proximate Analysis
- 1.4. Consumptions of coal in various Industries
- 1.5. Coal reserves in India
- 1.6. Lignite reserves in Gujarat
- 1.7. Classification of various underground coal mining methods.
- 1.8. Factors affecting selection of underground coal mining methods.
Unit 2 Bord & Pillar Method – Development
- 2.1. Applicability conditions of the bord and pillar method
- 2.2. Advantages and disadvantages of bord and pillar
- 2.3. Basic elements of bord and pillar mining method: pillar, gallery, junction, dip, strike, face, panel, barrier, roof, floor
- 2.4. Classification of bord and pillar mining system
- 2.5. Advantages of panel system of bord and pillar mining
- 2.6. Design of bord and pillar working
- 2.6.1. size of panel
- 2.6.2. size of barrier
- 2.6.3. size of pillars
- 2.6.4. width of galleries
- 2.7.1. by blasting of solids
- 2.7.2. by coal cutting machines
- 2.7.3. by gathering arm loaders and shuttle car
- 2.7.4. by continuous miner
- 2.8. In bord and pillar working calculate
- 2.8.1. Percentage of extraction of coal
- 2.8.2. Size of the panel
- 2.8.3. Number of faces Underground Mining of Coal Course Code: .4362201
Unit 3 Bord & Pillar Mining– Depillaring
- 3.1. Preparatory arrangement before Depillaring.
- 3.2. Principles of pillar extraction techniques
- 3.3. Factors influencing choice of pillar extraction method
- 3.4. Depillaring in thin and thick seam
- 3.5. Local fall, main fall, air blast, line of goaf.
- 3.6. Precautions against fire and inundation during depillaring
Unit 4 Longwall Mining
- 4.1. Longwall mining: Applicability conditions, elementary terms used in longwall mining
- 4.2. Classification of Longwall methods
- 4.3. Governing factors for selection of longwall method
- 4.4. Advancing and Retreating longwall faces: working method, merits and demerits
- 4.5. Single unit and double unit face: working method, merits and demerits
- 4.6. Longwall working with shearer
- 4.6.1. Shearer installation at longwall face
- 4.6.2. Sumping operation of shearer -- by drilling and blasting -- by snaking method
- 4.6.3. Face advancing method by shearer -- by full face cutting -- by half face cutting (zigzag method) Underground Mining of Coal Course Code: .4362201
Unit 5 Stowing Practice
- 5.1. Governing conditions for stowing
- 5.2. Advantages of stowing
- 5.3. Classification of stowing
- 5.4. Hydraulic stowing:
- 5.4.1. Applicability conditions
- 5.4.2. Hydraulic Profile Line and H:L ratio
- 5.4.3. Underground stowing arrangements and operation
- 5.4.4. Concentration of sand and water
- 5.4.5. Rate of stowing
- 5.4.6. Problems during sand stowing
- 5.5. Pneumatic stowing
- 5.5.2. Working methods
- 5.6. Mechanical stowing
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