Some new developments in monitoring, analysis and prediction of ground subsidence

CIM Bulletin, Vol. 80, No. 901, 1987

ADAM CHRZANOWSKI and ANNA SZOSTAK-CHRZANOWSKI, Department of Surveying Engineering, University of New Brunswick, Fredericton, New Brunswick

New techniques in monitoring surveys and new methods in the analysis and prediction of ground subsidence are being developed in the Department of Surveying Engineering at the University of New Brunswick (UNB). The new surveying techniques include a telemetry monitoring system developed at UNB in cooperation with CANMET, and use of the satellite Global Positioning System. A generalized approach to the analysis of deformation surveys has been developed which permits an integrated analysis of geodetic and geotechnical measurements in geometrical modelling of ground subsidence. A computer program, FEMMA, has been developed for the elastic and non-linear elastic analysis and the deterministic prediction of deformations using the finite element method.

Keywords: Coal mining, Technology, University of New Brunswick, Surveying, Ground subsidence, Monitoring.