Encyclopedia of Engineering Geology

2018 Edition
| Editors: Peter T. Bobrowsky, Brian Marker

Thermocouple

  • Jan VlckoEmail author
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-73568-9_283

Definition

Thermocouple – consist of two dissimilar conductors joined at one end to form a hot junction which produces a voltage. As the junction is heated or cooled the voltage changes and is converted to return as temperature. The Thermocouple Temperature Sensor is used in engineering geology for measuring temperature in soil and rock. Simply put, thermocouple is a “thermometer” capable of reading the temperature on the rock face or at different depths of the rock mass.

Overview

A large number of slope failures, where no significant trigger has been proposed and the rock failure mechanism remains unclear, have been recognized as hazards triggered by meteorological factors. Temperature oscillations produce cyclic thermal strains in rock masses which result in deterioration processes associated with cracking and jointing, in opening/closing of joints/fractures, and in jointed rock masses which in turn may initiate thermally driven displacements from slow creep (block ratcheting in...

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References

  1. Bakun-Mazor D, Hatzor YH, Glaser SD, Santamarina JC (2011) Climatic effects on keyblock motion: evidence from the rock slopes of Masada world heritage site. 45th US symposium in rock mechanics. San Francisco, pp 480–487Google Scholar
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  4. Vlcko J, Greif V, Grof V, Jezny M, Petro L, Brcek M (2009) Rock displacement and thermal expansion study at historic heritage sites in Slovakia. Environ Geol 58:1727–1740CrossRefGoogle Scholar
  5. Yatsu E (1988) The nature of weathering: an introduction. Sozosha, TokyoGoogle Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Comenius UniversityBratislavaSlovakia