Laser Scanning Monitoring of Deformations in Concrete Lining of Mine Shafts
V. V. Tarasov1, V. N. Aptukov1,2
1VNII Galurgii, Perm, 614000 Russia
2Perm State National Research University, Perm, 614000 Russia
Keywords: Laser scanning, geomonitoring, mine shaft, concrete lining, strain estimation, lining condition appraisal
Abstract
The authors discuss the known methods of shaft lining monitoring and put forward a new technique of real-time measurement of displacements on inner surface of concrete lining by laser scanning. The results of the preliminary filtering and subsequent processing of the specific monitoring measurements implemented in two mine shafts of Uralkali are presented as the estimates of the change in the shaft diameter, circumferencial strains and ellipticity. The monitoring data are effectively applicable in verification of mathematical models of strains and strength of concrete lining in shafts, including their junctions with horizontal tunnels.
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