Preprints
https://doi.org/10.5194/gi-2021-5
https://doi.org/10.5194/gi-2021-5

  19 Mar 2021

19 Mar 2021

Review status: this preprint is currently under review for the journal GI.

Observation of the rock slope thermal regime, coupled with crack meter stability monitoring

Ondřej Racek1,2, Jan Blahůt1, and Filip Hartvich1 Ondřej Racek et al.
  • 1Institute of Rock Structure and Mechanics, Czech Academy of Sciences, Department of Engineering Geology, V Holesovickach 94/41, 182 09, Prague, Czechia
  • 2Charles University in Prague, Faculty of Sciences, Department of Physical Geography and Geoecology, Albertov 6, 128 43, Prague, Czechia

Abstract. This article describes an innovative, complex and affordable monitoring system designed for joint observation of environmental parameters, rock block dilatations and temperature distribution inside the rock mass with a newly designed 3-meter borehole temperature sensor. Global radiation balance data are provided by pyranometers. The system introduces a novel approach for internal rock mass temperature measurement, which is crucial for the assessment of the changes in the stress field inside the rock slope influencing its stability. The innovative approach uses an almost identical monitoring system at different sites allowing easy setup, modularity and comparison of results. The components of the monitoring system are cheap, off-the-shelf and easy to replace. Using this newly designed system, we are currently monitoring three different sites, where the potential rock fall may endanger society assets below. The first results show differences between instrumented sites, although data time-series are relatively short. Temperature run inside the rock mass differs for each site significantly. This is very likely caused by different aspects of the rock slopes and different rock types. By further monitoring and data processing, using advanced modelling approaches, we expect to explain the differences among the sites, the influence of rock type, aspect and environmental variables on the long-term slope stability.

Ondřej Racek et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on gi-2021-5', Anonymous Referee #1, 19 Apr 2021
    • AC1: 'Reply on RC1', Ondřej Racek, 02 Jun 2021
  • RC2: 'Comment on gi-2021-5', Anonymous Referee #2, 10 May 2021
    • AC2: 'Reply on RC2', Ondřej Racek, 02 Jun 2021
  • AC3: 'Comment on gi-2021-5: Answered all comments and suggestions from both anonymous referees', Ondřej Racek, 02 Jun 2021

Ondřej Racek et al.

Data sets

Environmental and crackmeter data O. Racek https://doi.org/10.17632/4t38tvb4yn.1

Ondřej Racek et al.

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Short summary
This paper is dedicated to description of universal, easy to modify and affordable rock slope monitoring system. By such a system, we are able to monitor environmental variables, rock mass 3 m surface zone temperature and temporal dynamic of selected joints. So far, we are observed differences between three monitored sites, however, to further data analyses longer time series are needed. We hope, our work encourage scientific community to increase knowledge in this interesting field.