Abstract:The subterrane an c avities are seriously thre atened to construction and mining safety, and it's important to obtain the exact localization and dimensions of subterranean cavities for the planning of geotechnical and mining activities. Geophysical in vestigation is an alternative method for cavity detection, but it usually failed for the uncertainly so lution of information and data obtained by Geophysical methods. Drilling is considered as the most accurate method for cavity detection. However, the conventio… Show more
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