(PDF) Shallow cover over coal mining: a case study of …
In some mining areas it is known that the size of Subsidence over coal workings, Nagpur, India 317 Table 1 Summary of subsidence phenomena based on studies in the coal mines of India Properties of potholes Statistical data Remarks Location percentage 33% - over development workings of coal mines 62% - over depillaring areas of coal mines. 6% in ...
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