Bord & Pillar method development & Depillaring
45 videos • 67,291 views • by gunvant bele - mining classes
1
Elements of Bord& Pillar method - for 1st year Diploma& 2nd yr Degree .
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2
Applicability conditions of Bord& Pillar method -for 1st yr Diploma& 2yr deg/pdf
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3
Advantages of Bord & Pillar method- for 1st yr Dip&2nd yr degree /pdf
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4
Disadvantages of Bord & Pillar method-for 1st yr Diploma and 2nd yr degree
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5
Incubation period -for all mining students. explained in simple & easy way.
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6
Development by SDL with solid blasting -Panel layout, method of working, blasting, support /pdf
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7
Panel Size(number of pillars in a panel) with mathematical illustration - for all mining student
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8
Size of pillar - for 1st yr diploma& 3 rd yr degree
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9
Statutory provisions regarding Development
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10
Explanation of contiguous seam & Multi section(lying within 9m of each other)
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11
Classification of coal seam on the basis of gradient / inclination- for1st yr Diploma& 2nd yr deg
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12
Classification of coal seam on the basis of thickness-for 1st yr Diploma& 2nd yr degree
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13
Numerical on percentage of extraction during development -for 1st yr Diploma& 2nd yr degree
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14
what is mining? what steps are involved in the mining process? -for 1st yr Diploma& 2nd yr degree
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15
Regulation 118-Multi section& Contiguous workings . illustration with diagram .
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16
Definition of working place & working/pdf
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17
Definition of Goaf/pdf
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18
Depillaring and methods of depillaring/pdf
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19
Elements of the depillaring face
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20
Manner of extraction of pillars by slicing method/ Depillaring by slicing
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21
Bumps in coal mines - mechanism, Definition& Causes/pdf
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22
Overriding of pillars & Premature collapse/pdf
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23
Local fall and main fall/pdf
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24
Types of bumps
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25
Part 1- Line of extraction /Goaf line/ face line with purpose
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26
Part 2- Line of extraction
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27
Comparison of surface mining with underground mining
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28
Horizon Mining Part1-Introduction,Applicability conditions/pdf
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29
Horizon mining part2- Development, General consideration before adopting Horizon mining/pdf
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30
Splinter seam- Dangers,prevention method
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31
Comparison of Bord& Pillar method with Longwall method - For 1st yr Diploma, 2nd yr Degree
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32
what do you mean by Geo-mining conditions?
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33
Important Definition from mining technology
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34
Definition from mining technology
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35
Calculation of % of extraction during development
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36
Determination of panel size
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37
MCQ 5 on Coal gradation-Steam, rubble ,ROM
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38
Harmonic mining / Compensated strain method to prevent subsistence/pdf in description
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39
List of important institution imparting education in mining engineering in india
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40
Shape & Size of shaft
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41
Preparatory arrangements before depillaring.7 minutes deeply introduction before given subject.
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42
Maximum roof exposure at any one place at any one time during depillaring.
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43
Why two seams lying within 9 m of each other are termed as contiguous seam?
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44
Calculation of no. of pillars in a panel & %extraction during development - 2nd year diploma
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45
Cavabilitty index.
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