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|The integrated approach to monitoring surveys is based on a simultaneous utilization of geodetic, photogrammetric and geotechnical measurements of displacements, tilts, strains and any other geometrical parameters of deformation. New techniques for the integrated surveys are being developed at the University of New Brunswick in cooperation with the Canada Centre for Mineral and Energy Technology. A telemetry system for continuous monitoring of geotechnical measurements under difficult climatic and topographic conditions has been constructed and successfully tested in a coal mining area in western Canada. A generalized method for analysing the integrated deformation measurements has been developed and applied in the test area to yield three dimensional empirical modelling of surface movements from geodetic, photogrammetric and tilt surveys. The most appropriate model can be chosen from a statistical assessment of several modelling possibilities. The empirical model of the deformation can be employed in a "calibration" of the prediction (deterministic) model of the ground movements. A computer programme for two- and three-dimensional finite element modelling of elasto-plastic deformations has been developed at UNB as a part of the integrated approach. The :EM has been tested in predicting deformation in the test area in difficult geological conditions which were associated with an extraction of a steeply inclined coal seam. The results gave good agreement with the actual displacements obtained from geodetic measurements and confirmed the existence of a suspected fault.|
Additional chapters/articles from the SME-ICGCM book Proceeding of the Fourth Conference on Ground Control in Mining (ICGCM)
|Truss Bolting On-Cycle in Jane Mine Lower Freeport Seam||Design Of A Roof Truss Bolting Plan For Bear Mine||Tension-Torque Relationship For Mechanical Anchored Roof Bol||A Novel System For Automatic Installation Of Cement Grouted||Load Transfer Mechanics In Fully-Grouted Roof Bolts||An Investigation Of Longwall Pillar Stress History||Impact Of Horizontal Load On Shield Supports||Interaction Between Roof And Support On Longwall Faces With||Roof Control With Polyurethane For Recovery Of Kitt Energy?s||First Caving And Its Effects--A Case Study||Staubbekampfung An Schildausbau In Bruchbaustreben (Combatin||Yield Pillar Applications--Impact On Strata Control And Coal||Constraint Is The Prime Variable In Pillar Strength||Massive Pillar Failure--Two Case Studies||Investigations Of Underground Coal Mine Bursts||Destressing Practice In Rockburst-Prone Ground||Statistical Characterization Of Coal-Mine Roof Failure: Sugg||Pillar Design - Continuous Miner Butt Section And Longwall D||Design Factors In Near-Seam Interaction||Remote Sensing For Roof Control And Mine Planning: An Overvi||Design, Construction And Performance Of A Single Pass Lining||Computer Modelling And In Situ Instrumentation Techniques: A||A Sonic Wave Attenuation Technique For Monitoring Of Stress||The Radio Imaging Method (RIM) -- A Means Of Detecting And I||Clay Veins: Their Physical Characteristics. Prediction, and||Evaluation of the Point Load Strength for Soft Rock Classifi||Ground Control Experiences in a High Horizontal Stress Field||Horizontal Stresses and Their Impact on Roof Stability at th||Ground Control Problem Associated with Longwall Mining of De||Geotechnical Aspects of Subsidence over Room and Pillar Mine||Proposed Criteria for Assessing Subsidence Damage to Surface||Surface Subsidence. in Longwall Mining--A Case Stud||An Integrated Approach to the Monitoring and Modeling of Gro|