Rock mechanics & mine support
24 videos • 21,955 views • by gunvant bele - mining classes
1
The Pressure Arch Theory. 0.2 kg/ cm2 per metre depth note it.
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2
Stresses involved in U/G minining and explanation of stress & strain
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3
Bed separation & key terms in support
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4
Necessity of support/why support required in mines
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5
Testing of roof in Underground Coal mines/PDF in description
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6
Types of roof in underground & their properties.
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7
Types of support used in underground mines/PDF
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8
RMR- Geomechanics classification of rock mass- CMRI - ISM classification
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9
Support resistance in Longwall Face
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10
Anchorage testing of roof bolts
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11
Monitoring of roof bolt performance/Anchorage testing of roof bolts
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12
Principles of roof bolt- beam theory
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13
Principles of action of roof bolts - Suspension theory
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14
Principle of roof bolt - Keystone theory( keying theory)
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15
RQD- rock quality designation-pdf in description
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16
porosity and creep/pdf
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17
Elasticity, plasticity, Stress,longitudinal strain, Lateral strain
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18
Poisson's ratio
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19
physico mechanical properties of rocks
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20
Hook's law
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21
Setting of support - props & under set prop (Reg124 of CMR 2017)
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22
Purposes of roof bolting for 1st year Diploma in mining/Pdf
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23
What is Dilation? support of Freshly exposed roof.
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24
What is Convergence? Instruments are used to measure Convergence.
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