Contiguous Seam Extraction
Parting Between two seam less than 9 mtrs but more than 3 mtrs..
TOP Seam
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↕️ 3Meter To 9Meter
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Bottom Seam
Contiguous Extraction (Done because of Angle of draw)
Acc. to CMR-
No working in upper section should be done if working lower section is going on and it may Collapse.
* In contiguous-
pillars of upper section should vertically above the pillars of lower section.
(it is relaxed if seem inclination is >30°)
At any Place parting shouldn't be less than 3m.
Parting - 9m (max) and 3m (min) Because there is chances of passage and cracks in upper seam due to Roof Bolting.
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Blogger - SIDDHARTH URMALIYA
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