ISSN (Print) - 0012-9976 | ISSN (Online) - 2349-8846

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NORTH- Reorienting the Co-operatives

the cracks. To fill up cavities, a process called "sand stowing" is also used wherein sand-water mix is cast into the cavities through a piped supply. In Sudamdih mines the cracks caused by dynamiting were sprayed by water and filled up by stone dust, etc, and the methane gas was driven out by "booster fans".

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