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Monitoring and Assessment of Remedial Measures in Closed Open Cast Mine

  • Jan Zalesky
  • Kristyna Capova
Conference paper

Abstract

Open image in new window The excavated open cast mine Chabarovice, particularly the part of it with local name Rabenov, has been investigated and monitored by the Czech Technical University since 1998 because of problems connected with different types of instabilities. Complicated geotechnical conditions, extreme heterogeneity and artesian ground water of the origin site together with the conditions modified by open cast mining were the main reasons of land sliding. Stability analyses made by the Department of Geotechnics were focused on final slopes of the mine together with the supporting waste dump and they were based on analyses of 3-D deformation monitoring in instrumented boreholes and pore water pressure sensing. The Department has contributed to development of several types of remedial measures as drainage works, re-shaping, stabilizing embankment assessment, discontinuous anchored pile wall. The group of experts of the Department was asked to provide risk analysis of the final version of the design of the measures of the last but not stable Rabenov part of the mine. The results of the monitoring with results of analyses will be presented in the paper. Development of displacements on the site demonstrated partly different behavior than expected at the design stage and it approved concerns stated in our risk analysis. These events are described and discussed in the paper. There were successfully tested different applications of fiber optics deformation monitoring developed in before research and development projects, there. Continuous high resolution fiber optic monitoring system was modified for a new research focused on a group of churches in eastern Bohemia.

Keywords

Landslide Slope stability Mining Monitoring Risk analysis 

Notes

Acknowledgements

The authors would like to thank the Czech Ministry of Culture of the Czech Republic for funding of research projects DG16P02R049 “Evaluation of stability and technical conditions of the Broumov group of churches and proposal of remediation of this unique Europe culture heritage”. The paper was prepared and based on the support of this research project.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Faculty of Civil Engineering, Department of GeotechnicsCzech Technical University in PraguePraha 6Czech Republic

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