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Keywords: mined cavity
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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-272
... surveys and boring tests were determined from the results above. And it could be inferred the locations of the cavities of shallow depth and relaxation state of the ground from the geophysical survey. And mined cavities, distribution of the coal seams as well as the geological structures were observed...

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